18307980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:256

約数の個数: 144

約数和(自身を含む): 61012224

約数和(自身を除く): 42704244

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 31, 34, 36, 45, 51, 60, 62, 68, 85, 90, 93, 102, 124, 153, 155, 170, 180, 186, 193, 204, 255, 279, 306, 310, 340, 372, 386, 465, 510, 527, 558, 579, 612, 620, 765, 772, 930, 965, 1020, 1054, 1116, 1158, 1395, 1530, 1581, 1737, 1860, 1930, 2108, 2316, 2635, 2790, 2895, 3060, 3162, 3281, 3474, 3860, 4743, 5270, 5580, 5790, 5983, 6324, 6562, 6948, 7905, 8685, 9486, 9843, 10540, 11580, 11966, 13124, 15810, 16405, 17370, 17949, 18972, 19686, 23715, 23932, 29529, 29915, 31620, 32810, 34740, 35898, 39372, 47430, 49215, 53847, 59058, 59830, 65620, 71796, 89745, 94860, 98430, 101711, 107694, 118116, 119660, 147645, 179490, 196860, 203422, 215388, 269235, 295290, 305133, 358980, 406844, 508555, 538470, 590580, 610266, 915399, 1017110, 1076940, 1220532, 1525665, 1830798, 2034220, 3051330, 3661596, 4576995, 6102660, 9153990, 18307980]

約数ペア:

[(1, 18307980), (2, 9153990), (3, 6102660), (4, 4576995), (5, 3661596), (6, 3051330), (9, 2034220), (10, 1830798), (12, 1525665), (15, 1220532), (17, 1076940), (18, 1017110), (20, 915399), (30, 610266), (31, 590580), (34, 538470), (36, 508555), (45, 406844), (51, 358980), (60, 305133), (62, 295290), (68, 269235), (85, 215388), (90, 203422), (93, 196860), (102, 179490), (124, 147645), (153, 119660), (155, 118116), (170, 107694), (180, 101711), (186, 98430), (193, 94860), (204, 89745), (255, 71796), (279, 65620), (306, 59830), (310, 59058), (340, 53847), (372, 49215), (386, 47430), (465, 39372), (510, 35898), (527, 34740), (558, 32810), (579, 31620), (612, 29915), (620, 29529), (765, 23932), (772, 23715), (930, 19686), (965, 18972), (1020, 17949), (1054, 17370), (1116, 16405), (1158, 15810), (1395, 13124), (1530, 11966), (1581, 11580), (1737, 10540), (1860, 9843), (1930, 9486), (2108, 8685), (2316, 7905), (2635, 6948), (2790, 6562), (2895, 6324), (3060, 5983), (3162, 5790), (3281, 5580), (3474, 5270), (3860, 4743)]