398212880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{6277}}^1$

素因数の和:6364

約数の個数: 80

約数和(自身を含む): 1013570544

約数和(自身を除く): 615357664

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 61, 65, 80, 104, 122, 130, 208, 244, 260, 305, 488, 520, 610, 793, 976, 1040, 1220, 1586, 2440, 3172, 3965, 4880, 6277, 6344, 7930, 12554, 12688, 15860, 25108, 31385, 31720, 50216, 62770, 63440, 81601, 100432, 125540, 163202, 251080, 326404, 382897, 408005, 502160, 652808, 765794, 816010, 1305616, 1531588, 1632020, 1914485, 3063176, 3264040, 3828970, 4977661, 6126352, 6528080, 7657940, 9955322, 15315880, 19910644, 24888305, 30631760, 39821288, 49776610, 79642576, 99553220, 199106440, 398212880]

約数ペア:

[(1, 398212880), (2, 199106440), (4, 99553220), (5, 79642576), (8, 49776610), (10, 39821288), (13, 30631760), (16, 24888305), (20, 19910644), (26, 15315880), (40, 9955322), (52, 7657940), (61, 6528080), (65, 6126352), (80, 4977661), (104, 3828970), (122, 3264040), (130, 3063176), (208, 1914485), (244, 1632020), (260, 1531588), (305, 1305616), (488, 816010), (520, 765794), (610, 652808), (793, 502160), (976, 408005), (1040, 382897), (1220, 326404), (1586, 251080), (2440, 163202), (3172, 125540), (3965, 100432), (4880, 81601), (6277, 63440), (6344, 62770), (7930, 50216), (12554, 31720), (12688, 31385), (15860, 25108)]