865886980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{268909}}^1$

素因数の和:268948

約数の個数: 48

約数和(自身を含む): 2168490240

約数和(自身を除く): 1302603260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 268909, 537818, 1075636, 1344545, 1882363, 2689090, 3764726, 5378180, 6184907, 7529452, 9411815, 12369814, 18823630, 24739628, 30924535, 37647260, 43294349, 61849070, 86588698, 123698140, 173177396, 216471745, 432943490, 865886980]

約数ペア:

[(1, 865886980), (2, 432943490), (4, 216471745), (5, 173177396), (7, 123698140), (10, 86588698), (14, 61849070), (20, 43294349), (23, 37647260), (28, 30924535), (35, 24739628), (46, 18823630), (70, 12369814), (92, 9411815), (115, 7529452), (140, 6184907), (161, 5378180), (230, 3764726), (322, 2689090), (460, 1882363), (644, 1344545), (805, 1075636), (1610, 537818), (3220, 268909)]