3900740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 8636544

約数和(自身を除く): 4735804

約数列:

[1, 2, 4, 5, 10, 20, 41, 67, 71, 82, 134, 142, 164, 205, 268, 284, 335, 355, 410, 670, 710, 820, 1340, 1420, 2747, 2911, 4757, 5494, 5822, 9514, 10988, 11644, 13735, 14555, 19028, 23785, 27470, 29110, 47570, 54940, 58220, 95140, 195037, 390074, 780148, 975185, 1950370, 3900740]

約数ペア:

[(1, 3900740), (2, 1950370), (4, 975185), (5, 780148), (10, 390074), (20, 195037), (41, 95140), (67, 58220), (71, 54940), (82, 47570), (134, 29110), (142, 27470), (164, 23785), (205, 19028), (268, 14555), (284, 13735), (335, 11644), (355, 10988), (410, 9514), (670, 5822), (710, 5494), (820, 4757), (1340, 2911), (1420, 2747)]