20649010

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{569}}^1$

素因数の和:786

約数の個数: 32

約数和(自身を含む): 39398400

約数和(自身を除く): 18749390

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 191, 382, 569, 955, 1138, 1910, 2845, 3629, 5690, 7258, 10811, 18145, 21622, 36290, 54055, 108110, 108679, 217358, 543395, 1086790, 2064901, 4129802, 10324505, 20649010]

約数ペア:

[(1, 20649010), (2, 10324505), (5, 4129802), (10, 2064901), (19, 1086790), (38, 543395), (95, 217358), (190, 108679), (191, 108110), (382, 54055), (569, 36290), (955, 21622), (1138, 18145), (1910, 10811), (2845, 7258), (3629, 5690)]