168990520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103043}}^1$

素因数の和:103095

約数の個数: 32

約数和(自身を含む): 389506320

約数和(自身を除く): 220515800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 103043, 206086, 412172, 515215, 824344, 1030430, 2060860, 4121720, 4224763, 8449526, 16899052, 21123815, 33798104, 42247630, 84495260, 168990520]

約数ペア:

[(1, 168990520), (2, 84495260), (4, 42247630), (5, 33798104), (8, 21123815), (10, 16899052), (20, 8449526), (40, 4224763), (41, 4121720), (82, 2060860), (164, 1030430), (205, 824344), (328, 515215), (410, 412172), (820, 206086), (1640, 103043)]