28715920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11579}}^1$

素因数の和:11623

約数の個数: 40

約数和(自身を含む): 68924160

約数和(自身を除く): 40208240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 11579, 23158, 46316, 57895, 92632, 115790, 185264, 231580, 358949, 463160, 717898, 926320, 1435796, 1794745, 2871592, 3589490, 5743184, 7178980, 14357960, 28715920]

約数ペア:

[(1, 28715920), (2, 14357960), (4, 7178980), (5, 5743184), (8, 3589490), (10, 2871592), (16, 1794745), (20, 1435796), (31, 926320), (40, 717898), (62, 463160), (80, 358949), (124, 231580), (155, 185264), (248, 115790), (310, 92632), (496, 57895), (620, 46316), (1240, 23158), (2480, 11579)]