21346000

素因数分解:

$2^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{821}}^1$

素因数の和:857

約数の個数: 80

約数和(自身を含む): 55652688

約数和(自身を除く): 34306688

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 125, 130, 200, 208, 250, 260, 325, 400, 500, 520, 650, 821, 1000, 1040, 1300, 1625, 1642, 2000, 2600, 3250, 3284, 4105, 5200, 6500, 6568, 8210, 10673, 13000, 13136, 16420, 20525, 21346, 26000, 32840, 41050, 42692, 53365, 65680, 82100, 85384, 102625, 106730, 164200, 170768, 205250, 213460, 266825, 328400, 410500, 426920, 533650, 821000, 853840, 1067300, 1334125, 1642000, 2134600, 2668250, 4269200, 5336500, 10673000, 21346000]

約数ペア:

[(1, 21346000), (2, 10673000), (4, 5336500), (5, 4269200), (8, 2668250), (10, 2134600), (13, 1642000), (16, 1334125), (20, 1067300), (25, 853840), (26, 821000), (40, 533650), (50, 426920), (52, 410500), (65, 328400), (80, 266825), (100, 213460), (104, 205250), (125, 170768), (130, 164200), (200, 106730), (208, 102625), (250, 85384), (260, 82100), (325, 65680), (400, 53365), (500, 42692), (520, 41050), (650, 32840), (821, 26000), (1000, 21346), (1040, 20525), (1300, 16420), (1625, 13136), (1642, 13000), (2000, 10673), (2600, 8210), (3250, 6568), (3284, 6500), (4105, 5200)]