20320827280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19539257}}^1$

素因数の和:19539283

約数の個数: 40

約数和(自身を含む): 50880227832

約数和(自身を除く): 30559400552

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 19539257, 39078514, 78157028, 97696285, 156314056, 195392570, 254010341, 312628112, 390785140, 508020682, 781570280, 1016041364, 1270051705, 1563140560, 2032082728, 2540103410, 4064165456, 5080206820, 10160413640, 20320827280]

約数ペア:

[(1, 20320827280), (2, 10160413640), (4, 5080206820), (5, 4064165456), (8, 2540103410), (10, 2032082728), (13, 1563140560), (16, 1270051705), (20, 1016041364), (26, 781570280), (40, 508020682), (52, 390785140), (65, 312628112), (80, 254010341), (104, 195392570), (130, 156314056), (208, 97696285), (260, 78157028), (520, 39078514), (1040, 19539257)]