1640784080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{9679}}^1$

素因数の和:9868

約数の個数: 80

約数和(自身を含む): 4133902080

約数和(自身を除く): 2493118000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 163, 208, 260, 326, 520, 652, 815, 1040, 1304, 1630, 2119, 2608, 3260, 4238, 6520, 8476, 9679, 10595, 13040, 16952, 19358, 21190, 33904, 38716, 42380, 48395, 77432, 84760, 96790, 125827, 154864, 169520, 193580, 251654, 387160, 503308, 629135, 774320, 1006616, 1258270, 1577677, 2013232, 2516540, 3155354, 5033080, 6310708, 7888385, 10066160, 12621416, 15776770, 20509801, 25242832, 31553540, 41019602, 63107080, 82039204, 102549005, 126214160, 164078408, 205098010, 328156816, 410196020, 820392040, 1640784080]

約数ペア:

[(1, 1640784080), (2, 820392040), (4, 410196020), (5, 328156816), (8, 205098010), (10, 164078408), (13, 126214160), (16, 102549005), (20, 82039204), (26, 63107080), (40, 41019602), (52, 31553540), (65, 25242832), (80, 20509801), (104, 15776770), (130, 12621416), (163, 10066160), (208, 7888385), (260, 6310708), (326, 5033080), (520, 3155354), (652, 2516540), (815, 2013232), (1040, 1577677), (1304, 1258270), (1630, 1006616), (2119, 774320), (2608, 629135), (3260, 503308), (4238, 387160), (6520, 251654), (8476, 193580), (9679, 169520), (10595, 154864), (13040, 125827), (16952, 96790), (19358, 84760), (21190, 77432), (33904, 48395), (38716, 42380)]