20345750

素因数分解:

$2^1\times 5^3\times {\mathrm{97}}^1\times {\mathrm{839}}^1$

素因数の和:953

約数の個数: 32

約数和(自身を含む): 38525760

約数和(自身を除く): 18180010

約数列:

[1, 2, 5, 10, 25, 50, 97, 125, 194, 250, 485, 839, 970, 1678, 2425, 4195, 4850, 8390, 12125, 20975, 24250, 41950, 81383, 104875, 162766, 209750, 406915, 813830, 2034575, 4069150, 10172875, 20345750]

約数ペア:

[(1, 20345750), (2, 10172875), (5, 4069150), (10, 2034575), (25, 813830), (50, 406915), (97, 209750), (125, 162766), (194, 104875), (250, 81383), (485, 41950), (839, 24250), (970, 20975), (1678, 12125), (2425, 8390), (4195, 4850)]