2042500

素因数分解:

$2^2\times 5^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:86

約数の個数: 60

約数和(自身を含む): 4810960

約数和(自身を除く): 2768460

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 43, 50, 76, 86, 95, 100, 125, 172, 190, 215, 250, 380, 430, 475, 500, 625, 817, 860, 950, 1075, 1250, 1634, 1900, 2150, 2375, 2500, 3268, 4085, 4300, 4750, 5375, 8170, 9500, 10750, 11875, 16340, 20425, 21500, 23750, 26875, 40850, 47500, 53750, 81700, 102125, 107500, 204250, 408500, 510625, 1021250, 2042500]

約数ペア:

[(1, 2042500), (2, 1021250), (4, 510625), (5, 408500), (10, 204250), (19, 107500), (20, 102125), (25, 81700), (38, 53750), (43, 47500), (50, 40850), (76, 26875), (86, 23750), (95, 21500), (100, 20425), (125, 16340), (172, 11875), (190, 10750), (215, 9500), (250, 8170), (380, 5375), (430, 4750), (475, 4300), (500, 4085), (625, 3268), (817, 2500), (860, 2375), (950, 2150), (1075, 1900), (1250, 1634)]