1380458560

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{331841}}^1$

素因数の和:331871

約数の個数: 56

約数和(自身を含む): 3540090456

約数和(自身を除く): 2159631896

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 331841, 663682, 1327364, 1659205, 2654728, 3318410, 4313933, 5309456, 6636820, 8627866, 10618912, 13273640, 17255732, 21237824, 21569665, 26547280, 34511464, 43139330, 53094560, 69022928, 86278660, 106189120, 138045856, 172557320, 276091712, 345114640, 690229280, 1380458560]

約数ペア:

[(1, 1380458560), (2, 690229280), (4, 345114640), (5, 276091712), (8, 172557320), (10, 138045856), (13, 106189120), (16, 86278660), (20, 69022928), (26, 53094560), (32, 43139330), (40, 34511464), (52, 26547280), (64, 21569665), (65, 21237824), (80, 17255732), (104, 13273640), (130, 10618912), (160, 8627866), (208, 6636820), (260, 5309456), (320, 4313933), (416, 3318410), (520, 2654728), (832, 1659205), (1040, 1327364), (2080, 663682), (4160, 331841)]