20905051648

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{3140783}}^1$

素因数の和:3140814

約数の個数: 40

約数和(自身を含む): 44982308448

約数和(自身を除く): 24077256800

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1664, 3328, 6656, 3140783, 6281566, 12563132, 25126264, 40830179, 50252528, 81660358, 100505056, 163320716, 201010112, 326641432, 402020224, 653282864, 804040448, 1306565728, 1608080896, 2613131456, 5226262912, 10452525824, 20905051648]

約数ペア:

[(1, 20905051648), (2, 10452525824), (4, 5226262912), (8, 2613131456), (13, 1608080896), (16, 1306565728), (26, 804040448), (32, 653282864), (52, 402020224), (64, 326641432), (104, 201010112), (128, 163320716), (208, 100505056), (256, 81660358), (416, 50252528), (512, 40830179), (832, 25126264), (1664, 12563132), (3328, 6281566), (6656, 3140783)]