20402265

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4549}}^1$

素因数の和:4593

約数の個数: 32

約数和(自身を含む): 36691200

約数和(自身を除く): 16288935

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 4485, 4549, 13647, 22745, 59137, 68235, 104627, 177411, 295685, 313881, 523135, 887055, 1360151, 1569405, 4080453, 6800755, 20402265]

約数ペア:

[(1, 20402265), (3, 6800755), (5, 4080453), (13, 1569405), (15, 1360151), (23, 887055), (39, 523135), (65, 313881), (69, 295685), (115, 177411), (195, 104627), (299, 68235), (345, 59137), (897, 22745), (1495, 13647), (4485, 4549)]