31891438480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{43}}^1\times {\mathrm{877}}^1$

素因数の和:1006

約数の個数: 240

約数和(自身を含む): 85623037632

約数和(自身を除く): 53731599152

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 43, 44, 55, 62, 80, 86, 88, 110, 124, 155, 172, 176, 215, 220, 248, 310, 341, 344, 430, 440, 473, 496, 620, 682, 688, 860, 877, 880, 946, 961, 1240, 1333, 1364, 1705, 1720, 1754, 1892, 1922, 2365, 2480, 2666, 2728, 3410, 3440, 3508, 3784, 3844, 4385, 4730, 4805, 5332, 5456, 6665, 6820, 7016, 7568, 7688, 8770, 9460, 9610, 9647, 10571, 10664, 13330, 13640, 14032, 14663, 15376, 17540, 18920, 19220, 19294, 21142, 21328, 26660, 27187, 27280, 29326, 35080, 37711, 37840, 38440, 38588, 41323, 42284, 48235, 52855, 53320, 54374, 58652, 70160, 73315, 75422, 76880, 77176, 82646, 84568, 96470, 105710, 106640, 108748, 117304, 135935, 146630, 150844, 154352, 165292, 169136, 188555, 192940, 206615, 211420, 217496, 234608, 271870, 293260, 299057, 301688, 330584, 377110, 385880, 413230, 414821, 422840, 434992, 454553, 543740, 586520, 598114, 603376, 661168, 754220, 771760, 826460, 829642, 842797, 845680, 909106, 1087480, 1169041, 1173040, 1196228, 1495285, 1508440, 1652920, 1659284, 1685594, 1818212, 2074105, 2174960, 2272765, 2338082, 2392456, 2990570, 3016880, 3305840, 3318568, 3371188, 3636424, 4148210, 4213985, 4545530, 4676164, 4784912, 5845205, 5981140, 6637136, 6742376, 7272848, 8296420, 8427970, 9091060, 9270767, 9352328, 11690410, 11962280, 12859451, 13484752, 16592840, 16855940, 18182120, 18541534, 18704656, 23380820, 23924560, 25718902, 33185680, 33711880, 36240271, 36364240, 37083068, 46353835, 46761640, 51437804, 64297255, 67423760, 72480542, 74166136, 92707670, 93523280, 102875608, 128594510, 144961084, 148332272, 181201355, 185415340, 205751216, 257189020, 289922168, 362402710, 370830680, 398642981, 514378040, 579844336, 724805420, 741661360, 797285962, 1028756080, 1449610840, 1594571924, 1993214905, 2899221680, 3189143848, 3986429810, 6378287696, 7972859620, 15945719240, 31891438480]

約数ペア:

[(1, 31891438480), (2, 15945719240), (4, 7972859620), (5, 6378287696), (8, 3986429810), (10, 3189143848), (11, 2899221680), (16, 1993214905), (20, 1594571924), (22, 1449610840), (31, 1028756080), (40, 797285962), (43, 741661360), (44, 724805420), (55, 579844336), (62, 514378040), (80, 398642981), (86, 370830680), (88, 362402710), (110, 289922168), (124, 257189020), (155, 205751216), (172, 185415340), (176, 181201355), (215, 148332272), (220, 144961084), (248, 128594510), (310, 102875608), (341, 93523280), (344, 92707670), (430, 74166136), (440, 72480542), (473, 67423760), (496, 64297255), (620, 51437804), (682, 46761640), (688, 46353835), (860, 37083068), (877, 36364240), (880, 36240271), (946, 33711880), (961, 33185680), (1240, 25718902), (1333, 23924560), (1364, 23380820), (1705, 18704656), (1720, 18541534), (1754, 18182120), (1892, 16855940), (1922, 16592840), (2365, 13484752), (2480, 12859451), (2666, 11962280), (2728, 11690410), (3410, 9352328), (3440, 9270767), (3508, 9091060), (3784, 8427970), (3844, 8296420), (4385, 7272848), (4730, 6742376), (4805, 6637136), (5332, 5981140), (5456, 5845205), (6665, 4784912), (6820, 4676164), (7016, 4545530), (7568, 4213985), (7688, 4148210), (8770, 3636424), (9460, 3371188), (9610, 3318568), (9647, 3305840), (10571, 3016880), (10664, 2990570), (13330, 2392456), (13640, 2338082), (14032, 2272765), (14663, 2174960), (15376, 2074105), (17540, 1818212), (18920, 1685594), (19220, 1659284), (19294, 1652920), (21142, 1508440), (21328, 1495285), (26660, 1196228), (27187, 1173040), (27280, 1169041), (29326, 1087480), (35080, 909106), (37711, 845680), (37840, 842797), (38440, 829642), (38588, 826460), (41323, 771760), (42284, 754220), (48235, 661168), (52855, 603376), (53320, 598114), (54374, 586520), (58652, 543740), (70160, 454553), (73315, 434992), (75422, 422840), (76880, 414821), (77176, 413230), (82646, 385880), (84568, 377110), (96470, 330584), (105710, 301688), (106640, 299057), (108748, 293260), (117304, 271870), (135935, 234608), (146630, 217496), (150844, 211420), (154352, 206615), (165292, 192940), (169136, 188555)]