161187780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{206651}}^1$

素因数の和:206676

約数の個数: 48

約数和(自身を含む): 486045504

約数和(自身を除く): 324857724

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 206651, 413302, 619953, 826604, 1033255, 1239906, 2066510, 2479812, 2686463, 3099765, 4133020, 5372926, 6199530, 8059389, 10745852, 12399060, 13432315, 16118778, 26864630, 32237556, 40296945, 53729260, 80593890, 161187780]

約数ペア:

[(1, 161187780), (2, 80593890), (3, 53729260), (4, 40296945), (5, 32237556), (6, 26864630), (10, 16118778), (12, 13432315), (13, 12399060), (15, 10745852), (20, 8059389), (26, 6199530), (30, 5372926), (39, 4133020), (52, 3099765), (60, 2686463), (65, 2479812), (78, 2066510), (130, 1239906), (156, 1033255), (195, 826604), (260, 619953), (390, 413302), (780, 206651)]