217943640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{331}}^1$

素因数の和:438

約数の個数: 192

約数和(自身を含む): 745804800

約数和(自身を除く): 527861160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 59, 60, 62, 72, 90, 93, 118, 120, 124, 155, 177, 180, 186, 236, 248, 279, 295, 310, 331, 354, 360, 372, 465, 472, 531, 558, 590, 620, 662, 708, 744, 885, 930, 993, 1062, 1116, 1180, 1240, 1324, 1395, 1416, 1655, 1770, 1829, 1860, 1986, 2124, 2232, 2360, 2648, 2655, 2790, 2979, 3310, 3540, 3658, 3720, 3972, 4248, 4965, 5310, 5487, 5580, 5958, 6620, 7080, 7316, 7944, 9145, 9930, 10261, 10620, 10974, 11160, 11916, 13240, 14632, 14895, 16461, 18290, 19529, 19860, 20522, 21240, 21948, 23832, 27435, 29790, 30783, 32922, 36580, 39058, 39720, 41044, 43896, 51305, 54870, 58587, 59580, 61566, 65844, 73160, 78116, 82088, 82305, 92349, 97645, 102610, 109740, 117174, 119160, 123132, 131688, 153915, 156232, 164610, 175761, 184698, 195290, 205220, 219480, 234348, 246264, 292935, 307830, 329220, 351522, 369396, 390580, 410440, 461745, 468696, 585870, 605399, 615660, 658440, 703044, 738792, 781160, 878805, 923490, 1171740, 1210798, 1231320, 1406088, 1757610, 1816197, 1846980, 2343480, 2421596, 3026995, 3515220, 3632394, 3693960, 4843192, 5448591, 6053990, 7030440, 7264788, 9080985, 10897182, 12107980, 14529576, 18161970, 21794364, 24215960, 27242955, 36323940, 43588728, 54485910, 72647880, 108971820, 217943640]

約数ペア:

[(1, 217943640), (2, 108971820), (3, 72647880), (4, 54485910), (5, 43588728), (6, 36323940), (8, 27242955), (9, 24215960), (10, 21794364), (12, 18161970), (15, 14529576), (18, 12107980), (20, 10897182), (24, 9080985), (30, 7264788), (31, 7030440), (36, 6053990), (40, 5448591), (45, 4843192), (59, 3693960), (60, 3632394), (62, 3515220), (72, 3026995), (90, 2421596), (93, 2343480), (118, 1846980), (120, 1816197), (124, 1757610), (155, 1406088), (177, 1231320), (180, 1210798), (186, 1171740), (236, 923490), (248, 878805), (279, 781160), (295, 738792), (310, 703044), (331, 658440), (354, 615660), (360, 605399), (372, 585870), (465, 468696), (472, 461745), (531, 410440), (558, 390580), (590, 369396), (620, 351522), (662, 329220), (708, 307830), (744, 292935), (885, 246264), (930, 234348), (993, 219480), (1062, 205220), (1116, 195290), (1180, 184698), (1240, 175761), (1324, 164610), (1395, 156232), (1416, 153915), (1655, 131688), (1770, 123132), (1829, 119160), (1860, 117174), (1986, 109740), (2124, 102610), (2232, 97645), (2360, 92349), (2648, 82305), (2655, 82088), (2790, 78116), (2979, 73160), (3310, 65844), (3540, 61566), (3658, 59580), (3720, 58587), (3972, 54870), (4248, 51305), (4965, 43896), (5310, 41044), (5487, 39720), (5580, 39058), (5958, 36580), (6620, 32922), (7080, 30783), (7316, 29790), (7944, 27435), (9145, 23832), (9930, 21948), (10261, 21240), (10620, 20522), (10974, 19860), (11160, 19529), (11916, 18290), (13240, 16461), (14632, 14895)]