42055000

素因数分解:

$2^3\times 5^4\times {\mathrm{13}}^1\times {\mathrm{647}}^1$

素因数の和:686

約数の個数: 80

約数和(自身を含む): 106278480

約数和(自身を除く): 64223480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 500, 520, 625, 647, 650, 1000, 1250, 1294, 1300, 1625, 2500, 2588, 2600, 3235, 3250, 5000, 5176, 6470, 6500, 8125, 8411, 12940, 13000, 16175, 16250, 16822, 25880, 32350, 32500, 33644, 42055, 64700, 65000, 67288, 80875, 84110, 129400, 161750, 168220, 210275, 323500, 336440, 404375, 420550, 647000, 808750, 841100, 1051375, 1617500, 1682200, 2102750, 3235000, 4205500, 5256875, 8411000, 10513750, 21027500, 42055000]

約数ペア:

[(1, 42055000), (2, 21027500), (4, 10513750), (5, 8411000), (8, 5256875), (10, 4205500), (13, 3235000), (20, 2102750), (25, 1682200), (26, 1617500), (40, 1051375), (50, 841100), (52, 808750), (65, 647000), (100, 420550), (104, 404375), (125, 336440), (130, 323500), (200, 210275), (250, 168220), (260, 161750), (325, 129400), (500, 84110), (520, 80875), (625, 67288), (647, 65000), (650, 64700), (1000, 42055), (1250, 33644), (1294, 32500), (1300, 32350), (1625, 25880), (2500, 16822), (2588, 16250), (2600, 16175), (3235, 13000), (3250, 12940), (5000, 8411), (5176, 8125), (6470, 6500)]