1917385960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{220897}}^1$

素因数の和:220946

約数の個数: 64

約数和(自身を含む): 5089489920

約数和(自身を除く): 3172103960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 220897, 441794, 883588, 1104485, 1546279, 1767176, 2208970, 3092558, 4417940, 6185116, 6847807, 7731395, 8835880, 12370232, 13695614, 15462790, 27391228, 30925580, 34239035, 47934649, 54782456, 61851160, 68478070, 95869298, 136956140, 191738596, 239673245, 273912280, 383477192, 479346490, 958692980, 1917385960]

約数ペア:

[(1, 1917385960), (2, 958692980), (4, 479346490), (5, 383477192), (7, 273912280), (8, 239673245), (10, 191738596), (14, 136956140), (20, 95869298), (28, 68478070), (31, 61851160), (35, 54782456), (40, 47934649), (56, 34239035), (62, 30925580), (70, 27391228), (124, 15462790), (140, 13695614), (155, 12370232), (217, 8835880), (248, 7731395), (280, 6847807), (310, 6185116), (434, 4417940), (620, 3092558), (868, 2208970), (1085, 1767176), (1240, 1546279), (1736, 1104485), (2170, 883588), (4340, 441794), (8680, 220897)]