128520828

素因数分解:

$2^2\times 3^2\times {\mathrm{157}}^1\times {\mathrm{22739}}^1$

素因数の和:22906

約数の個数: 36

約数和(自身を含む): 326955720

約数和(自身を除く): 198434892

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 157, 314, 471, 628, 942, 1413, 1884, 2826, 5652, 22739, 45478, 68217, 90956, 136434, 204651, 272868, 409302, 818604, 3570023, 7140046, 10710069, 14280092, 21420138, 32130207, 42840276, 64260414, 128520828]

約数ペア:

[(1, 128520828), (2, 64260414), (3, 42840276), (4, 32130207), (6, 21420138), (9, 14280092), (12, 10710069), (18, 7140046), (36, 3570023), (157, 818604), (314, 409302), (471, 272868), (628, 204651), (942, 136434), (1413, 90956), (1884, 68217), (2826, 45478), (5652, 22739)]