405492050

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{887}}^1$

素因数の和:1163

約数の個数: 48

約数和(自身を含む): 776950272

約数和(自身を除く): 371458222

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 205, 223, 410, 446, 887, 1025, 1115, 1774, 2050, 2230, 4435, 5575, 8870, 9143, 11150, 18286, 22175, 36367, 44350, 45715, 72734, 91430, 181835, 197801, 228575, 363670, 395602, 457150, 909175, 989005, 1818350, 1978010, 4945025, 8109841, 9890050, 16219682, 40549205, 81098410, 202746025, 405492050]

約数ペア:

[(1, 405492050), (2, 202746025), (5, 81098410), (10, 40549205), (25, 16219682), (41, 9890050), (50, 8109841), (82, 4945025), (205, 1978010), (223, 1818350), (410, 989005), (446, 909175), (887, 457150), (1025, 395602), (1115, 363670), (1774, 228575), (2050, 197801), (2230, 181835), (4435, 91430), (5575, 72734), (8870, 45715), (9143, 44350), (11150, 36367), (18286, 22175)]