64820020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{170579}}^1$

素因数の和:170607

約数の個数: 24

約数和(自身を含む): 143287200

約数和(自身を除く): 78467180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 170579, 341158, 682316, 852895, 1705790, 3241001, 3411580, 6482002, 12964004, 16205005, 32410010, 64820020]

約数ペア:

[(1, 64820020), (2, 32410010), (4, 16205005), (5, 12964004), (10, 6482002), (19, 3411580), (20, 3241001), (38, 1705790), (76, 852895), (95, 682316), (190, 341158), (380, 170579)]