205658960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6379}}^1$

素因数の和:6436

約数の個数: 80

約数和(自身を含む): 531632640

約数和(自身を除く): 325973680

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, 2480, 3224, 4030, 6379, 6448, 8060, 12758, 16120, 25516, 31895, 32240, 51032, 63790, 82927, 102064, 127580, 165854, 197749, 255160, 331708, 395498, 414635, 510320, 663416, 790996, 829270, 988745, 1326832, 1581992, 1658540, 1977490, 2570737, 3163984, 3317080, 3954980, 5141474, 6634160, 7909960, 10282948, 12853685, 15819920, 20565896, 25707370, 41131792, 51414740, 102829480, 205658960]

約数ペア:

[(1, 205658960), (2, 102829480), (4, 51414740), (5, 41131792), (8, 25707370), (10, 20565896), (13, 15819920), (16, 12853685), (20, 10282948), (26, 7909960), (31, 6634160), (40, 5141474), (52, 3954980), (62, 3317080), (65, 3163984), (80, 2570737), (104, 1977490), (124, 1658540), (130, 1581992), (155, 1326832), (208, 988745), (248, 829270), (260, 790996), (310, 663416), (403, 510320), (496, 414635), (520, 395498), (620, 331708), (806, 255160), (1040, 197749), (1240, 165854), (1612, 127580), (2015, 102064), (2480, 82927), (3224, 63790), (4030, 51032), (6379, 32240), (6448, 31895), (8060, 25516), (12758, 16120)]