20719090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{757}}^1$

素因数の和:811

約数の個数: 64

約数和(自身を含む): 47153664

約数和(自身を除く): 26434574

約数列:

[1, 2, 5, 7, 10, 14, 17, 23, 34, 35, 46, 70, 85, 115, 119, 161, 170, 230, 238, 322, 391, 595, 757, 782, 805, 1190, 1514, 1610, 1955, 2737, 3785, 3910, 5299, 5474, 7570, 10598, 12869, 13685, 17411, 25738, 26495, 27370, 34822, 52990, 64345, 87055, 90083, 121877, 128690, 174110, 180166, 243754, 295987, 450415, 591974, 609385, 900830, 1218770, 1479935, 2071909, 2959870, 4143818, 10359545, 20719090]

約数ペア:

[(1, 20719090), (2, 10359545), (5, 4143818), (7, 2959870), (10, 2071909), (14, 1479935), (17, 1218770), (23, 900830), (34, 609385), (35, 591974), (46, 450415), (70, 295987), (85, 243754), (115, 180166), (119, 174110), (161, 128690), (170, 121877), (230, 90083), (238, 87055), (322, 64345), (391, 52990), (595, 34822), (757, 27370), (782, 26495), (805, 25738), (1190, 17411), (1514, 13685), (1610, 12869), (1955, 10598), (2737, 7570), (3785, 5474), (3910, 5299)]