205429360

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151051}}^1$

素因数の和:151081

約数の個数: 40

約数和(自身を含む): 505722096

約数和(自身を除く): 300292736

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 151051, 302102, 604204, 755255, 1208408, 1510510, 2416816, 2567867, 3021020, 5135734, 6042040, 10271468, 12084080, 12839335, 20542936, 25678670, 41085872, 51357340, 102714680, 205429360]

約数ペア:

[(1, 205429360), (2, 102714680), (4, 51357340), (5, 41085872), (8, 25678670), (10, 20542936), (16, 12839335), (17, 12084080), (20, 10271468), (34, 6042040), (40, 5135734), (68, 3021020), (80, 2567867), (85, 2416816), (136, 1510510), (170, 1208408), (272, 755255), (340, 604204), (680, 302102), (1360, 151051)]