20804577160

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{2176211}}^1$

素因数の和:2176461

約数の個数: 32

約数和(自身を含む): 47006179200

約数和(自身を除く): 26201602040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4780, 9560, 2176211, 4352422, 8704844, 10881055, 17409688, 21762110, 43524220, 87048440, 520114429, 1040228858, 2080457716, 2600572145, 4160915432, 5201144290, 10402288580, 20804577160]

約数ペア:

[(1, 20804577160), (2, 10402288580), (4, 5201144290), (5, 4160915432), (8, 2600572145), (10, 2080457716), (20, 1040228858), (40, 520114429), (239, 87048440), (478, 43524220), (956, 21762110), (1195, 17409688), (1912, 10881055), (2390, 8704844), (4780, 4352422), (9560, 2176211)]