51225880

素因数分解:

$2^3\times 5^1\times {\mathrm{809}}^1\times {\mathrm{1583}}^1$

素因数の和:2403

約数の個数: 32

約数和(自身を含む): 115473600

約数和(自身を除く): 64247720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 809, 1583, 1618, 3166, 3236, 4045, 6332, 6472, 7915, 8090, 12664, 15830, 16180, 31660, 32360, 63320, 1280647, 2561294, 5122588, 6403235, 10245176, 12806470, 25612940, 51225880]

約数ペア:

[(1, 51225880), (2, 25612940), (4, 12806470), (5, 10245176), (8, 6403235), (10, 5122588), (20, 2561294), (40, 1280647), (809, 63320), (1583, 32360), (1618, 31660), (3166, 16180), (3236, 15830), (4045, 12664), (6332, 8090), (6472, 7915)]