2489920

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:299

約数の個数: 56

約数和(自身を含む): 6144768

約数和(自身を除く): 3654848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 251, 310, 320, 496, 502, 620, 992, 1004, 1240, 1255, 1984, 2008, 2480, 2510, 4016, 4960, 5020, 7781, 8032, 9920, 10040, 15562, 16064, 20080, 31124, 38905, 40160, 62248, 77810, 80320, 124496, 155620, 248992, 311240, 497984, 622480, 1244960, 2489920]

約数ペア:

[(1, 2489920), (2, 1244960), (4, 622480), (5, 497984), (8, 311240), (10, 248992), (16, 155620), (20, 124496), (31, 80320), (32, 77810), (40, 62248), (62, 40160), (64, 38905), (80, 31124), (124, 20080), (155, 16064), (160, 15562), (248, 10040), (251, 9920), (310, 8032), (320, 7781), (496, 5020), (502, 4960), (620, 4016), (992, 2510), (1004, 2480), (1240, 2008), (1255, 1984)]