80451420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{191551}}^1$

素因数の和:191570

約数の個数: 48

約数和(自身を含む): 257445888

約数和(自身を除く): 176994468

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 191551, 383102, 574653, 766204, 957755, 1149306, 1340857, 1915510, 2298612, 2681714, 2873265, 3831020, 4022571, 5363428, 5746530, 6704285, 8045142, 11493060, 13408570, 16090284, 20112855, 26817140, 40225710, 80451420]

約数ペア:

[(1, 80451420), (2, 40225710), (3, 26817140), (4, 20112855), (5, 16090284), (6, 13408570), (7, 11493060), (10, 8045142), (12, 6704285), (14, 5746530), (15, 5363428), (20, 4022571), (21, 3831020), (28, 2873265), (30, 2681714), (35, 2298612), (42, 1915510), (60, 1340857), (70, 1149306), (84, 957755), (105, 766204), (140, 574653), (210, 383102), (420, 191551)]