128433500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{19759}}^1$

素因数の和:19791

約数の個数: 48

約数和(自身を含む): 302090880

約数和(自身を除く): 173657380

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1300, 1625, 3250, 6500, 19759, 39518, 79036, 98795, 197590, 256867, 395180, 493975, 513734, 987950, 1027468, 1284335, 1975900, 2469875, 2568670, 4939750, 5137340, 6421675, 9879500, 12843350, 25686700, 32108375, 64216750, 128433500]

約数ペア:

[(1, 128433500), (2, 64216750), (4, 32108375), (5, 25686700), (10, 12843350), (13, 9879500), (20, 6421675), (25, 5137340), (26, 4939750), (50, 2568670), (52, 2469875), (65, 1975900), (100, 1284335), (125, 1027468), (130, 987950), (250, 513734), (260, 493975), (325, 395180), (500, 256867), (650, 197590), (1300, 98795), (1625, 79036), (3250, 39518), (6500, 19759)]