2455000

素因数分解:

$2^3\times 5^4\times {\mathrm{491}}^1$

素因数の和:517

約数の個数: 40

約数和(自身を含む): 5763780

約数和(自身を除く): 3308780

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 491, 500, 625, 982, 1000, 1250, 1964, 2455, 2500, 3928, 4910, 5000, 9820, 12275, 19640, 24550, 49100, 61375, 98200, 122750, 245500, 306875, 491000, 613750, 1227500, 2455000]

約数ペア:

[(1, 2455000), (2, 1227500), (4, 613750), (5, 491000), (8, 306875), (10, 245500), (20, 122750), (25, 98200), (40, 61375), (50, 49100), (100, 24550), (125, 19640), (200, 12275), (250, 9820), (491, 5000), (500, 4910), (625, 3928), (982, 2500), (1000, 2455), (1250, 1964)]