89866280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2309}}^1$

素因数の和:2466

約数の個数: 64

約数和(自身を含む): 232848000

約数和(自身を除く): 142981720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 278, 280, 556, 695, 973, 1112, 1390, 1946, 2309, 2780, 3892, 4618, 4865, 5560, 7784, 9236, 9730, 11545, 16163, 18472, 19460, 23090, 32326, 38920, 46180, 64652, 80815, 92360, 129304, 161630, 320951, 323260, 641902, 646520, 1283804, 1604755, 2246657, 2567608, 3209510, 4493314, 6419020, 8986628, 11233285, 12838040, 17973256, 22466570, 44933140, 89866280]

約数ペア:

[(1, 89866280), (2, 44933140), (4, 22466570), (5, 17973256), (7, 12838040), (8, 11233285), (10, 8986628), (14, 6419020), (20, 4493314), (28, 3209510), (35, 2567608), (40, 2246657), (56, 1604755), (70, 1283804), (139, 646520), (140, 641902), (278, 323260), (280, 320951), (556, 161630), (695, 129304), (973, 92360), (1112, 80815), (1390, 64652), (1946, 46180), (2309, 38920), (2780, 32326), (3892, 23090), (4618, 19460), (4865, 18472), (5560, 16163), (7784, 11545), (9236, 9730)]