18187120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{691}}^1$

素因数の和:758

約数の個数: 80

約数和(自身を含む): 49425408

約数和(自身を除く): 31238288

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 56, 70, 80, 94, 112, 140, 188, 235, 280, 329, 376, 470, 560, 658, 691, 752, 940, 1316, 1382, 1645, 1880, 2632, 2764, 3290, 3455, 3760, 4837, 5264, 5528, 6580, 6910, 9674, 11056, 13160, 13820, 19348, 24185, 26320, 27640, 32477, 38696, 48370, 55280, 64954, 77392, 96740, 129908, 162385, 193480, 227339, 259816, 324770, 386960, 454678, 519632, 649540, 909356, 1136695, 1299080, 1818712, 2273390, 2598160, 3637424, 4546780, 9093560, 18187120]

約数ペア:

[(1, 18187120), (2, 9093560), (4, 4546780), (5, 3637424), (7, 2598160), (8, 2273390), (10, 1818712), (14, 1299080), (16, 1136695), (20, 909356), (28, 649540), (35, 519632), (40, 454678), (47, 386960), (56, 324770), (70, 259816), (80, 227339), (94, 193480), (112, 162385), (140, 129908), (188, 96740), (235, 77392), (280, 64954), (329, 55280), (376, 48370), (470, 38696), (560, 32477), (658, 27640), (691, 26320), (752, 24185), (940, 19348), (1316, 13820), (1382, 13160), (1645, 11056), (1880, 9674), (2632, 6910), (2764, 6580), (3290, 5528), (3455, 5264), (3760, 4837)]