20552464

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{233}}^1$

素因数の和:427

約数の個数: 40

約数和(自身を含む): 41347800

約数和(自身を除く): 20795336

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 149, 233, 296, 298, 466, 592, 596, 932, 1192, 1864, 2384, 3728, 5513, 8621, 11026, 17242, 22052, 34484, 34717, 44104, 68968, 69434, 88208, 137936, 138868, 277736, 555472, 1284529, 2569058, 5138116, 10276232, 20552464]

約数ペア:

[(1, 20552464), (2, 10276232), (4, 5138116), (8, 2569058), (16, 1284529), (37, 555472), (74, 277736), (148, 138868), (149, 137936), (233, 88208), (296, 69434), (298, 68968), (466, 44104), (592, 34717), (596, 34484), (932, 22052), (1192, 17242), (1864, 11026), (2384, 8621), (3728, 5513)]