18187454980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{271}}^1\times {\mathrm{461}}^1$

素因数の和:1021

約数の個数: 96

約数和(自身を含む): 39900833280

約数和(自身を除く): 21713378300

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 251, 271, 290, 461, 502, 542, 580, 922, 1004, 1084, 1255, 1355, 1844, 2305, 2510, 2710, 4610, 5020, 5420, 7279, 7859, 9220, 13369, 14558, 15718, 26738, 29116, 31436, 36395, 39295, 53476, 66845, 68021, 72790, 78590, 115711, 124931, 133690, 136042, 145580, 157180, 231422, 249862, 267380, 272084, 340105, 462844, 499724, 578555, 624655, 680210, 1157110, 1249310, 1360420, 1972609, 2314220, 2498620, 3355619, 3622999, 3945218, 6711238, 7245998, 7890436, 9863045, 13422476, 14491996, 16778095, 18114995, 19726090, 31357681, 33556190, 36229990, 39452180, 62715362, 67112380, 72459980, 125430724, 156788405, 313576810, 627153620, 909372749, 1818745498, 3637490996, 4546863745, 9093727490, 18187454980]

約数ペア:

[(1, 18187454980), (2, 9093727490), (4, 4546863745), (5, 3637490996), (10, 1818745498), (20, 909372749), (29, 627153620), (58, 313576810), (116, 156788405), (145, 125430724), (251, 72459980), (271, 67112380), (290, 62715362), (461, 39452180), (502, 36229990), (542, 33556190), (580, 31357681), (922, 19726090), (1004, 18114995), (1084, 16778095), (1255, 14491996), (1355, 13422476), (1844, 9863045), (2305, 7890436), (2510, 7245998), (2710, 6711238), (4610, 3945218), (5020, 3622999), (5420, 3355619), (7279, 2498620), (7859, 2314220), (9220, 1972609), (13369, 1360420), (14558, 1249310), (15718, 1157110), (26738, 680210), (29116, 624655), (31436, 578555), (36395, 499724), (39295, 462844), (53476, 340105), (66845, 272084), (68021, 267380), (72790, 249862), (78590, 231422), (115711, 157180), (124931, 145580), (133690, 136042)]