68804680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3461}}^1$

素因数の和:3550

約数の個数: 64

約数和(自身を含む): 179470080

約数和(自身を除く): 110665400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2485, 2840, 3461, 3976, 4970, 6922, 9940, 13844, 17305, 19880, 24227, 27688, 34610, 48454, 69220, 96908, 121135, 138440, 193816, 242270, 245731, 484540, 491462, 969080, 982924, 1228655, 1720117, 1965848, 2457310, 3440234, 4914620, 6880468, 8600585, 9829240, 13760936, 17201170, 34402340, 68804680]

約数ペア:

[(1, 68804680), (2, 34402340), (4, 17201170), (5, 13760936), (7, 9829240), (8, 8600585), (10, 6880468), (14, 4914620), (20, 3440234), (28, 2457310), (35, 1965848), (40, 1720117), (56, 1228655), (70, 982924), (71, 969080), (140, 491462), (142, 484540), (280, 245731), (284, 242270), (355, 193816), (497, 138440), (568, 121135), (710, 96908), (994, 69220), (1420, 48454), (1988, 34610), (2485, 27688), (2840, 24227), (3461, 19880), (3976, 17305), (4970, 13844), (6922, 9940)]