1671280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1607}}^1$

素因数の和:1633

約数の個数: 40

約数和(自身を含む): 4187232

約数和(自身を除く): 2515952

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1607, 3214, 6428, 8035, 12856, 16070, 20891, 25712, 32140, 41782, 64280, 83564, 104455, 128560, 167128, 208910, 334256, 417820, 835640, 1671280]

約数ペア:

[(1, 1671280), (2, 835640), (4, 417820), (5, 334256), (8, 208910), (10, 167128), (13, 128560), (16, 104455), (20, 83564), (26, 64280), (40, 41782), (52, 32140), (65, 25712), (80, 20891), (104, 16070), (130, 12856), (208, 8035), (260, 6428), (520, 3214), (1040, 1607)]