289488980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{27997}}^1$

素因数の和:28064

約数の個数: 48

約数和(自身を含む): 677327616

約数和(自身を除く): 387838636

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 188, 220, 235, 470, 517, 940, 1034, 2068, 2585, 5170, 10340, 27997, 55994, 111988, 139985, 279970, 307967, 559940, 615934, 1231868, 1315859, 1539835, 2631718, 3079670, 5263436, 6159340, 6579295, 13158590, 14474449, 26317180, 28948898, 57897796, 72372245, 144744490, 289488980]

約数ペア:

[(1, 289488980), (2, 144744490), (4, 72372245), (5, 57897796), (10, 28948898), (11, 26317180), (20, 14474449), (22, 13158590), (44, 6579295), (47, 6159340), (55, 5263436), (94, 3079670), (110, 2631718), (188, 1539835), (220, 1315859), (235, 1231868), (470, 615934), (517, 559940), (940, 307967), (1034, 279970), (2068, 139985), (2585, 111988), (5170, 55994), (10340, 27997)]