18956360

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{457}}^1$

素因数の和:546

約数の個数: 64

約数和(自身を含む): 46001520

約数和(自身を除く): 27045160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 61, 68, 85, 122, 136, 170, 244, 305, 340, 457, 488, 610, 680, 914, 1037, 1220, 1828, 2074, 2285, 2440, 3656, 4148, 4570, 5185, 7769, 8296, 9140, 10370, 15538, 18280, 20740, 27877, 31076, 38845, 41480, 55754, 62152, 77690, 111508, 139385, 155380, 223016, 278770, 310760, 473909, 557540, 947818, 1115080, 1895636, 2369545, 3791272, 4739090, 9478180, 18956360]

約数ペア:

[(1, 18956360), (2, 9478180), (4, 4739090), (5, 3791272), (8, 2369545), (10, 1895636), (17, 1115080), (20, 947818), (34, 557540), (40, 473909), (61, 310760), (68, 278770), (85, 223016), (122, 155380), (136, 139385), (170, 111508), (244, 77690), (305, 62152), (340, 55754), (457, 41480), (488, 38845), (610, 31076), (680, 27877), (914, 20740), (1037, 18280), (1220, 15538), (1828, 10370), (2074, 9140), (2285, 8296), (2440, 7769), (3656, 5185), (4148, 4570)]