72728480

素因数分解:

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

素因数の和:131

約数の個数: 144

約数和(自身を含む): 198186912

約数和(自身を除く): 125458432

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 43, 44, 55, 62, 80, 86, 88, 110, 124, 155, 160, 172, 176, 215, 220, 248, 310, 341, 344, 352, 430, 440, 473, 496, 620, 682, 688, 860, 880, 946, 961, 992, 1240, 1333, 1364, 1376, 1705, 1720, 1760, 1892, 1922, 2365, 2480, 2666, 2728, 3410, 3440, 3784, 3844, 4730, 4805, 4960, 5332, 5456, 6665, 6820, 6880, 7568, 7688, 9460, 9610, 10571, 10664, 10912, 13330, 13640, 14663, 15136, 15376, 18920, 19220, 21142, 21328, 26660, 27280, 29326, 30752, 37840, 38440, 41323, 42284, 42656, 52855, 53320, 54560, 58652, 73315, 75680, 76880, 82646, 84568, 105710, 106640, 117304, 146630, 153760, 165292, 169136, 206615, 211420, 213280, 234608, 293260, 330584, 338272, 413230, 422840, 454553, 469216, 586520, 661168, 826460, 845680, 909106, 1173040, 1322336, 1652920, 1691360, 1818212, 2272765, 2346080, 3305840, 3636424, 4545530, 6611680, 7272848, 9091060, 14545696, 18182120, 36364240, 72728480]

約数ペア:

[(1, 72728480), (2, 36364240), (4, 18182120), (5, 14545696), (8, 9091060), (10, 7272848), (11, 6611680), (16, 4545530), (20, 3636424), (22, 3305840), (31, 2346080), (32, 2272765), (40, 1818212), (43, 1691360), (44, 1652920), (55, 1322336), (62, 1173040), (80, 909106), (86, 845680), (88, 826460), (110, 661168), (124, 586520), (155, 469216), (160, 454553), (172, 422840), (176, 413230), (215, 338272), (220, 330584), (248, 293260), (310, 234608), (341, 213280), (344, 211420), (352, 206615), (430, 169136), (440, 165292), (473, 153760), (496, 146630), (620, 117304), (682, 106640), (688, 105710), (860, 84568), (880, 82646), (946, 76880), (961, 75680), (992, 73315), (1240, 58652), (1333, 54560), (1364, 53320), (1376, 52855), (1705, 42656), (1720, 42284), (1760, 41323), (1892, 38440), (1922, 37840), (2365, 30752), (2480, 29326), (2666, 27280), (2728, 26660), (3410, 21328), (3440, 21142), (3784, 19220), (3844, 18920), (4730, 15376), (4805, 15136), (4960, 14663), (5332, 13640), (5456, 13330), (6665, 10912), (6820, 10664), (6880, 10571), (7568, 9610), (7688, 9460)]