1915742740

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{241}}^1\times {\mathrm{1663}}^1$

素因数の和:2152

約数の個数: 48

約数和(自身を含む): 4059095040

約数和(自身を除く): 2143352300

約数列:

[1, 2, 4, 5, 10, 20, 239, 241, 478, 482, 956, 964, 1195, 1205, 1663, 2390, 2410, 3326, 4780, 4820, 6652, 8315, 16630, 33260, 57599, 115198, 230396, 287995, 397457, 400783, 575990, 794914, 801566, 1151980, 1589828, 1603132, 1987285, 2003915, 3974570, 4007830, 7949140, 8015660, 95787137, 191574274, 383148548, 478935685, 957871370, 1915742740]

約数ペア:

[(1, 1915742740), (2, 957871370), (4, 478935685), (5, 383148548), (10, 191574274), (20, 95787137), (239, 8015660), (241, 7949140), (478, 4007830), (482, 3974570), (956, 2003915), (964, 1987285), (1195, 1603132), (1205, 1589828), (1663, 1151980), (2390, 801566), (2410, 794914), (3326, 575990), (4780, 400783), (4820, 397457), (6652, 287995), (8315, 230396), (16630, 115198), (33260, 57599)]