10212500

素因数分解:

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

素因数の和:91

約数の個数: 72

約数和(自身を含む): 24060960

約数和(自身を除く): 13848460

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, 3125, 3268, 4085, 4300, 4750, 5375, 6250, 8170, 9500, 10750, 11875, 12500, 16340, 20425, 21500, 23750, 26875, 40850, 47500, 53750, 59375, 81700, 102125, 107500, 118750, 134375, 204250, 237500, 268750, 408500, 510625, 537500, 1021250, 2042500, 2553125, 5106250, 10212500]

約数ペア:

[(1, 10212500), (2, 5106250), (4, 2553125), (5, 2042500), (10, 1021250), (19, 537500), (20, 510625), (25, 408500), (38, 268750), (43, 237500), (50, 204250), (76, 134375), (86, 118750), (95, 107500), (100, 102125), (125, 81700), (172, 59375), (190, 53750), (215, 47500), (250, 40850), (380, 26875), (430, 23750), (475, 21500), (500, 20425), (625, 16340), (817, 12500), (860, 11875), (950, 10750), (1075, 9500), (1250, 8170), (1634, 6250), (1900, 5375), (2150, 4750), (2375, 4300), (2500, 4085), (3125, 3268)]