85543220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{2129}}^1$

素因数の和:2193

約数の個数: 72

約数和(自身を含む): 214167240

約数和(自身を除く): 128624020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 490, 574, 820, 980, 1148, 1435, 2009, 2129, 2870, 4018, 4258, 5740, 8036, 8516, 10045, 10645, 14903, 20090, 21290, 29806, 40180, 42580, 59612, 74515, 87289, 104321, 149030, 174578, 208642, 298060, 349156, 417284, 436445, 521605, 611023, 872890, 1043210, 1222046, 1745780, 2086420, 2444092, 3055115, 4277161, 6110230, 8554322, 12220460, 17108644, 21385805, 42771610, 85543220]

約数ペア:

[(1, 85543220), (2, 42771610), (4, 21385805), (5, 17108644), (7, 12220460), (10, 8554322), (14, 6110230), (20, 4277161), (28, 3055115), (35, 2444092), (41, 2086420), (49, 1745780), (70, 1222046), (82, 1043210), (98, 872890), (140, 611023), (164, 521605), (196, 436445), (205, 417284), (245, 349156), (287, 298060), (410, 208642), (490, 174578), (574, 149030), (820, 104321), (980, 87289), (1148, 74515), (1435, 59612), (2009, 42580), (2129, 40180), (2870, 29806), (4018, 21290), (4258, 20090), (5740, 14903), (8036, 10645), (8516, 10045)]