77878780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{3331}}^1$

素因数の和:3514

約数の個数: 48

約数和(自身を含む): 188084736

約数和(自身を除く): 110205956

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 167, 334, 668, 835, 1169, 1670, 2338, 3331, 3340, 4676, 5845, 6662, 11690, 13324, 16655, 23317, 23380, 33310, 46634, 66620, 93268, 116585, 233170, 466340, 556277, 1112554, 2225108, 2781385, 3893939, 5562770, 7787878, 11125540, 15575756, 19469695, 38939390, 77878780]

約数ペア:

[(1, 77878780), (2, 38939390), (4, 19469695), (5, 15575756), (7, 11125540), (10, 7787878), (14, 5562770), (20, 3893939), (28, 2781385), (35, 2225108), (70, 1112554), (140, 556277), (167, 466340), (334, 233170), (668, 116585), (835, 93268), (1169, 66620), (1670, 46634), (2338, 33310), (3331, 23380), (3340, 23317), (4676, 16655), (5845, 13324), (6662, 11690)]