1721161520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1654963}}^1$

素因数の和:1654989

約数の個数: 40

約数和(自身を含む): 4309526256

約数和(自身を除く): 2588364736

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1654963, 3309926, 6619852, 8274815, 13239704, 16549630, 21514519, 26479408, 33099260, 43029038, 66198520, 86058076, 107572595, 132397040, 172116152, 215145190, 344232304, 430290380, 860580760, 1721161520]

約数ペア:

[(1, 1721161520), (2, 860580760), (4, 430290380), (5, 344232304), (8, 215145190), (10, 172116152), (13, 132397040), (16, 107572595), (20, 86058076), (26, 66198520), (40, 43029038), (52, 33099260), (65, 26479408), (80, 21514519), (104, 16549630), (130, 13239704), (208, 8274815), (260, 6619852), (520, 3309926), (1040, 1654963)]