4205500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{647}}^1$

素因数の和:679

約数の個数: 48

約数和(自身を含む): 9906624

約数和(自身を除く): 5701124

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 647, 650, 1294, 1300, 1625, 2588, 3235, 3250, 6470, 6500, 8411, 12940, 16175, 16822, 32350, 33644, 42055, 64700, 80875, 84110, 161750, 168220, 210275, 323500, 420550, 841100, 1051375, 2102750, 4205500]

約数ペア:

[(1, 4205500), (2, 2102750), (4, 1051375), (5, 841100), (10, 420550), (13, 323500), (20, 210275), (25, 168220), (26, 161750), (50, 84110), (52, 80875), (65, 64700), (100, 42055), (125, 33644), (130, 32350), (250, 16822), (260, 16175), (325, 12940), (500, 8411), (647, 6500), (650, 6470), (1294, 3250), (1300, 3235), (1625, 2588)]