2567500

素因数分解:

$2^2\times 5^4\times {\mathrm{13}}^1\times {\mathrm{79}}^1$

素因数の和:116

約数の個数: 60

約数和(自身を含む): 6123040

約数和(自身を除く): 3555540

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 79, 100, 125, 130, 158, 250, 260, 316, 325, 395, 500, 625, 650, 790, 1027, 1250, 1300, 1580, 1625, 1975, 2054, 2500, 3250, 3950, 4108, 5135, 6500, 7900, 8125, 9875, 10270, 16250, 19750, 20540, 25675, 32500, 39500, 49375, 51350, 98750, 102700, 128375, 197500, 256750, 513500, 641875, 1283750, 2567500]

約数ペア:

[(1, 2567500), (2, 1283750), (4, 641875), (5, 513500), (10, 256750), (13, 197500), (20, 128375), (25, 102700), (26, 98750), (50, 51350), (52, 49375), (65, 39500), (79, 32500), (100, 25675), (125, 20540), (130, 19750), (158, 16250), (250, 10270), (260, 9875), (316, 8125), (325, 7900), (395, 6500), (500, 5135), (625, 4108), (650, 3950), (790, 3250), (1027, 2500), (1250, 2054), (1300, 1975), (1580, 1625)]