31398660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:394

約数の個数: 144

約数和(自身を含む): 104412672

約数和(自身を除く): 73014012

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, 204, 255, 279, 306, 310, 331, 340, 372, 465, 510, 527, 558, 612, 620, 662, 765, 930, 993, 1020, 1054, 1116, 1324, 1395, 1530, 1581, 1655, 1860, 1986, 2108, 2635, 2790, 2979, 3060, 3162, 3310, 3972, 4743, 4965, 5270, 5580, 5627, 5958, 6324, 6620, 7905, 9486, 9930, 10261, 10540, 11254, 11916, 14895, 15810, 16881, 18972, 19860, 20522, 22508, 23715, 28135, 29790, 30783, 31620, 33762, 41044, 47430, 50643, 51305, 56270, 59580, 61566, 67524, 84405, 92349, 94860, 101286, 102610, 112540, 123132, 153915, 168810, 174437, 184698, 202572, 205220, 253215, 307830, 337620, 348874, 369396, 461745, 506430, 523311, 615660, 697748, 872185, 923490, 1012860, 1046622, 1569933, 1744370, 1846980, 2093244, 2616555, 3139866, 3488740, 5233110, 6279732, 7849665, 10466220, 15699330, 31398660]

約数ペア:

[(1, 31398660), (2, 15699330), (3, 10466220), (4, 7849665), (5, 6279732), (6, 5233110), (9, 3488740), (10, 3139866), (12, 2616555), (15, 2093244), (17, 1846980), (18, 1744370), (20, 1569933), (30, 1046622), (31, 1012860), (34, 923490), (36, 872185), (45, 697748), (51, 615660), (60, 523311), (62, 506430), (68, 461745), (85, 369396), (90, 348874), (93, 337620), (102, 307830), (124, 253215), (153, 205220), (155, 202572), (170, 184698), (180, 174437), (186, 168810), (204, 153915), (255, 123132), (279, 112540), (306, 102610), (310, 101286), (331, 94860), (340, 92349), (372, 84405), (465, 67524), (510, 61566), (527, 59580), (558, 56270), (612, 51305), (620, 50643), (662, 47430), (765, 41044), (930, 33762), (993, 31620), (1020, 30783), (1054, 29790), (1116, 28135), (1324, 23715), (1395, 22508), (1530, 20522), (1581, 19860), (1655, 18972), (1860, 16881), (1986, 15810), (2108, 14895), (2635, 11916), (2790, 11254), (2979, 10540), (3060, 10261), (3162, 9930), (3310, 9486), (3972, 7905), (4743, 6620), (4965, 6324), (5270, 5958), (5580, 5627)]