321241840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{129533}}^1$

素因数の和:129577

約数の個数: 40

約数和(自身を含む): 770986368

約数和(自身を除く): 449744528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 129533, 259066, 518132, 647665, 1036264, 1295330, 2072528, 2590660, 4015523, 5181320, 8031046, 10362640, 16062092, 20077615, 32124184, 40155230, 64248368, 80310460, 160620920, 321241840]

約数ペア:

[(1, 321241840), (2, 160620920), (4, 80310460), (5, 64248368), (8, 40155230), (10, 32124184), (16, 20077615), (20, 16062092), (31, 10362640), (40, 8031046), (62, 5181320), (80, 4015523), (124, 2590660), (155, 2072528), (248, 1295330), (310, 1036264), (496, 647665), (620, 518132), (1240, 259066), (2480, 129533)]