20784497648

素因数分解:

$2^4\times {\mathrm{179}}^1\times {\mathrm{7257157}}^1$

素因数の和:7257344

約数の個数: 20

約数和(自身を含む): 40494941640

約数和(自身を除く): 19710443992

約数列:

[1, 2, 4, 8, 16, 179, 358, 716, 1432, 2864, 7257157, 14514314, 29028628, 58057256, 116114512, 1299031103, 2598062206, 5196124412, 10392248824, 20784497648]

約数ペア:

[(1, 20784497648), (2, 10392248824), (4, 5196124412), (8, 2598062206), (16, 1299031103), (179, 116114512), (358, 58057256), (716, 29028628), (1432, 14514314), (2864, 7257157)]