6402500

素因数分解:

$2^2\times 5^4\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:234

約数の個数: 60

約数和(自身を含む): 15154524

約数和(自身を除く): 8752024

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 197, 250, 260, 325, 394, 500, 625, 650, 788, 985, 1250, 1300, 1625, 1970, 2500, 2561, 3250, 3940, 4925, 5122, 6500, 8125, 9850, 10244, 12805, 16250, 19700, 24625, 25610, 32500, 49250, 51220, 64025, 98500, 123125, 128050, 246250, 256100, 320125, 492500, 640250, 1280500, 1600625, 3201250, 6402500]

約数ペア:

[(1, 6402500), (2, 3201250), (4, 1600625), (5, 1280500), (10, 640250), (13, 492500), (20, 320125), (25, 256100), (26, 246250), (50, 128050), (52, 123125), (65, 98500), (100, 64025), (125, 51220), (130, 49250), (197, 32500), (250, 25610), (260, 24625), (325, 19700), (394, 16250), (500, 12805), (625, 10244), (650, 9850), (788, 8125), (985, 6500), (1250, 5122), (1300, 4925), (1625, 3940), (1970, 3250), (2500, 2561)]