720761210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{997}}^1$

素因数の和:1167

約数の個数: 64

約数和(自身を含む): 1436545152

約数和(自身を除く): 715783942

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 83, 130, 134, 166, 335, 415, 670, 830, 871, 997, 1079, 1742, 1994, 2158, 4355, 4985, 5395, 5561, 8710, 9970, 10790, 11122, 12961, 25922, 27805, 55610, 64805, 66799, 72293, 82751, 129610, 133598, 144586, 165502, 333995, 361465, 413755, 667990, 722930, 827510, 868387, 1075763, 1736774, 2151526, 4341935, 5378815, 5544317, 8683870, 10757630, 11088634, 27721585, 55443170, 72076121, 144152242, 360380605, 720761210]

約数ペア:

[(1, 720761210), (2, 360380605), (5, 144152242), (10, 72076121), (13, 55443170), (26, 27721585), (65, 11088634), (67, 10757630), (83, 8683870), (130, 5544317), (134, 5378815), (166, 4341935), (335, 2151526), (415, 1736774), (670, 1075763), (830, 868387), (871, 827510), (997, 722930), (1079, 667990), (1742, 413755), (1994, 361465), (2158, 333995), (4355, 165502), (4985, 144586), (5395, 133598), (5561, 129610), (8710, 82751), (9970, 72293), (10790, 66799), (11122, 64805), (12961, 55610), (25922, 27805)]