15511472920

素因数分解:

$2^3\times 5^1\times {\mathrm{18481}}^1\times {\mathrm{20983}}^1$

素因数の和:39475

約数の個数: 32

約数和(自身を含む): 34904365920

約数和(自身を除く): 19392893000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 18481, 20983, 36962, 41966, 73924, 83932, 92405, 104915, 147848, 167864, 184810, 209830, 369620, 419660, 739240, 839320, 387786823, 775573646, 1551147292, 1938934115, 3102294584, 3877868230, 7755736460, 15511472920]

約数ペア:

[(1, 15511472920), (2, 7755736460), (4, 3877868230), (5, 3102294584), (8, 1938934115), (10, 1551147292), (20, 775573646), (40, 387786823), (18481, 839320), (20983, 739240), (36962, 419660), (41966, 369620), (73924, 209830), (83932, 184810), (92405, 167864), (104915, 147848)]