321805680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{191551}}^1$

素因数の和:191574

約数の個数: 80

約数和(自身を含む): 1140117504

約数和(自身を除く): 818311824

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 191551, 383102, 574653, 766204, 957755, 1149306, 1340857, 1532408, 1915510, 2298612, 2681714, 2873265, 3064816, 3831020, 4022571, 4597224, 5363428, 5746530, 6704285, 7662040, 8045142, 9194448, 10726856, 11493060, 13408570, 15324080, 16090284, 20112855, 21453712, 22986120, 26817140, 32180568, 40225710, 45972240, 53634280, 64361136, 80451420, 107268560, 160902840, 321805680]

約数ペア:

[(1, 321805680), (2, 160902840), (3, 107268560), (4, 80451420), (5, 64361136), (6, 53634280), (7, 45972240), (8, 40225710), (10, 32180568), (12, 26817140), (14, 22986120), (15, 21453712), (16, 20112855), (20, 16090284), (21, 15324080), (24, 13408570), (28, 11493060), (30, 10726856), (35, 9194448), (40, 8045142), (42, 7662040), (48, 6704285), (56, 5746530), (60, 5363428), (70, 4597224), (80, 4022571), (84, 3831020), (105, 3064816), (112, 2873265), (120, 2681714), (140, 2298612), (168, 1915510), (210, 1532408), (240, 1340857), (280, 1149306), (336, 957755), (420, 766204), (560, 574653), (840, 383102), (1680, 191551)]