8696740

素因数分解:

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

素因数の和:149

約数の個数: 72

約数和(自身を含む): 20659968

約数和(自身を除く): 11963228

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 83, 124, 130, 155, 166, 169, 260, 310, 332, 338, 403, 415, 620, 676, 806, 830, 845, 1079, 1612, 1660, 1690, 2015, 2158, 2573, 3380, 4030, 4316, 5146, 5239, 5395, 8060, 10292, 10478, 10790, 12865, 14027, 20956, 21580, 25730, 26195, 28054, 33449, 51460, 52390, 56108, 66898, 70135, 104780, 133796, 140270, 167245, 280540, 334490, 434837, 668980, 869674, 1739348, 2174185, 4348370, 8696740]

約数ペア:

[(1, 8696740), (2, 4348370), (4, 2174185), (5, 1739348), (10, 869674), (13, 668980), (20, 434837), (26, 334490), (31, 280540), (52, 167245), (62, 140270), (65, 133796), (83, 104780), (124, 70135), (130, 66898), (155, 56108), (166, 52390), (169, 51460), (260, 33449), (310, 28054), (332, 26195), (338, 25730), (403, 21580), (415, 20956), (620, 14027), (676, 12865), (806, 10790), (830, 10478), (845, 10292), (1079, 8060), (1612, 5395), (1660, 5239), (1690, 5146), (2015, 4316), (2158, 4030), (2573, 3380)]