128165720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{11087}}^1$

素因数の和:11132

約数の個数: 48

約数和(自身を含む): 306361440

約数和(自身を除く): 178195720

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 578, 680, 1156, 1445, 2312, 2890, 5780, 11087, 11560, 22174, 44348, 55435, 88696, 110870, 188479, 221740, 376958, 443480, 753916, 942395, 1507832, 1884790, 3204143, 3769580, 6408286, 7539160, 12816572, 16020715, 25633144, 32041430, 64082860, 128165720]

約数ペア:

[(1, 128165720), (2, 64082860), (4, 32041430), (5, 25633144), (8, 16020715), (10, 12816572), (17, 7539160), (20, 6408286), (34, 3769580), (40, 3204143), (68, 1884790), (85, 1507832), (136, 942395), (170, 753916), (289, 443480), (340, 376958), (578, 221740), (680, 188479), (1156, 110870), (1445, 88696), (2312, 55435), (2890, 44348), (5780, 22174), (11087, 11560)]