90646790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{271}}^1$

素因数の和:405

約数の個数: 64

約数和(自身を含む): 184246272

約数和(自身を除く): 93599482

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 83, 130, 155, 166, 271, 310, 403, 415, 542, 806, 830, 1079, 1355, 2015, 2158, 2573, 2710, 3523, 4030, 5146, 5395, 7046, 8401, 10790, 12865, 16802, 17615, 22493, 25730, 33449, 35230, 42005, 44986, 66898, 84010, 109213, 112465, 167245, 218426, 224930, 292409, 334490, 546065, 584818, 697283, 1092130, 1394566, 1462045, 2924090, 3486415, 6972830, 9064679, 18129358, 45323395, 90646790]

約数ペア:

[(1, 90646790), (2, 45323395), (5, 18129358), (10, 9064679), (13, 6972830), (26, 3486415), (31, 2924090), (62, 1462045), (65, 1394566), (83, 1092130), (130, 697283), (155, 584818), (166, 546065), (271, 334490), (310, 292409), (403, 224930), (415, 218426), (542, 167245), (806, 112465), (830, 109213), (1079, 84010), (1355, 66898), (2015, 44986), (2158, 42005), (2573, 35230), (2710, 33449), (3523, 25730), (4030, 22493), (5146, 17615), (5395, 16802), (7046, 12865), (8401, 10790)]