139978640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{56443}}^1$

素因数の和:56487

約数の個数: 40

約数和(自身を含む): 335954688

約数和(自身を除く): 195976048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 56443, 112886, 225772, 282215, 451544, 564430, 903088, 1128860, 1749733, 2257720, 3499466, 4515440, 6998932, 8748665, 13997864, 17497330, 27995728, 34994660, 69989320, 139978640]

約数ペア:

[(1, 139978640), (2, 69989320), (4, 34994660), (5, 27995728), (8, 17497330), (10, 13997864), (16, 8748665), (20, 6998932), (31, 4515440), (40, 3499466), (62, 2257720), (80, 1749733), (124, 1128860), (155, 903088), (248, 564430), (310, 451544), (496, 282215), (620, 225772), (1240, 112886), (2480, 56443)]