1218624580

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1\times {\mathrm{4001}}^1$

素因数の和:4264

約数の個数: 48

約数和(自身を含む): 2602612656

約数和(自身を除く): 1383988076

約数列:

[1, 2, 4, 5, 10, 20, 97, 157, 194, 314, 388, 485, 628, 785, 970, 1570, 1940, 3140, 4001, 8002, 15229, 16004, 20005, 30458, 40010, 60916, 76145, 80020, 152290, 304580, 388097, 628157, 776194, 1256314, 1552388, 1940485, 2512628, 3140785, 3880970, 6281570, 7761940, 12563140, 60931229, 121862458, 243724916, 304656145, 609312290, 1218624580]

約数ペア:

[(1, 1218624580), (2, 609312290), (4, 304656145), (5, 243724916), (10, 121862458), (20, 60931229), (97, 12563140), (157, 7761940), (194, 6281570), (314, 3880970), (388, 3140785), (485, 2512628), (628, 1940485), (785, 1552388), (970, 1256314), (1570, 776194), (1940, 628157), (3140, 388097), (4001, 304580), (8002, 152290), (15229, 80020), (16004, 76145), (20005, 60916), (30458, 40010)]