78697840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2441}}^1$

素因数の和:2498

約数の個数: 80

約数和(自身を含む): 203486976

約数和(自身を除く): 124789136

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2441, 2480, 3224, 4030, 4882, 6448, 8060, 9764, 12205, 16120, 19528, 24410, 31733, 32240, 39056, 48820, 63466, 75671, 97640, 126932, 151342, 158665, 195280, 253864, 302684, 317330, 378355, 507728, 605368, 634660, 756710, 983723, 1210736, 1269320, 1513420, 1967446, 2538640, 3026840, 3934892, 4918615, 6053680, 7869784, 9837230, 15739568, 19674460, 39348920, 78697840]

約数ペア:

[(1, 78697840), (2, 39348920), (4, 19674460), (5, 15739568), (8, 9837230), (10, 7869784), (13, 6053680), (16, 4918615), (20, 3934892), (26, 3026840), (31, 2538640), (40, 1967446), (52, 1513420), (62, 1269320), (65, 1210736), (80, 983723), (104, 756710), (124, 634660), (130, 605368), (155, 507728), (208, 378355), (248, 317330), (260, 302684), (310, 253864), (403, 195280), (496, 158665), (520, 151342), (620, 126932), (806, 97640), (1040, 75671), (1240, 63466), (1612, 48820), (2015, 39056), (2441, 32240), (2480, 31733), (3224, 24410), (4030, 19528), (4882, 16120), (6448, 12205), (8060, 9764)]