78204380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1571}}^1$

素因数の和:1730

約数の個数: 48

約数和(自身を含む): 174303360

約数和(自身を除く): 96098980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 131, 190, 262, 380, 524, 655, 1310, 1571, 2489, 2620, 3142, 4978, 6284, 7855, 9956, 12445, 15710, 24890, 29849, 31420, 49780, 59698, 119396, 149245, 205801, 298490, 411602, 596980, 823204, 1029005, 2058010, 3910219, 4116020, 7820438, 15640876, 19551095, 39102190, 78204380]

約数ペア:

[(1, 78204380), (2, 39102190), (4, 19551095), (5, 15640876), (10, 7820438), (19, 4116020), (20, 3910219), (38, 2058010), (76, 1029005), (95, 823204), (131, 596980), (190, 411602), (262, 298490), (380, 205801), (524, 149245), (655, 119396), (1310, 59698), (1571, 49780), (2489, 31420), (2620, 29849), (3142, 24890), (4978, 15710), (6284, 12445), (7855, 9956)]