20430872

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1951}}^1$

素因数の和:1992

約数の個数: 64

約数和(自身を含む): 50595840

約数和(自身を除く): 30164968

約数列:

[1, 2, 4, 7, 8, 11, 14, 17, 22, 28, 34, 44, 56, 68, 77, 88, 119, 136, 154, 187, 238, 308, 374, 476, 616, 748, 952, 1309, 1496, 1951, 2618, 3902, 5236, 7804, 10472, 13657, 15608, 21461, 27314, 33167, 42922, 54628, 66334, 85844, 109256, 132668, 150227, 171688, 232169, 265336, 300454, 364837, 464338, 600908, 729674, 928676, 1201816, 1459348, 1857352, 2553859, 2918696, 5107718, 10215436, 20430872]

約数ペア:

[(1, 20430872), (2, 10215436), (4, 5107718), (7, 2918696), (8, 2553859), (11, 1857352), (14, 1459348), (17, 1201816), (22, 928676), (28, 729674), (34, 600908), (44, 464338), (56, 364837), (68, 300454), (77, 265336), (88, 232169), (119, 171688), (136, 150227), (154, 132668), (187, 109256), (238, 85844), (308, 66334), (374, 54628), (476, 42922), (616, 33167), (748, 27314), (952, 21461), (1309, 15608), (1496, 13657), (1951, 10472), (2618, 7804), (3902, 5236)]