345640180

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1\times {\mathrm{1231}}^1$

素因数の和:1480

約数の個数: 48

約数和(自身を含む): 738904320

約数和(自身を除く): 393264140

約数列:

[1, 2, 4, 5, 10, 20, 101, 139, 202, 278, 404, 505, 556, 695, 1010, 1231, 1390, 2020, 2462, 2780, 4924, 6155, 12310, 14039, 24620, 28078, 56156, 70195, 124331, 140390, 171109, 248662, 280780, 342218, 497324, 621655, 684436, 855545, 1243310, 1711090, 2486620, 3422180, 17282009, 34564018, 69128036, 86410045, 172820090, 345640180]

約数ペア:

[(1, 345640180), (2, 172820090), (4, 86410045), (5, 69128036), (10, 34564018), (20, 17282009), (101, 3422180), (139, 2486620), (202, 1711090), (278, 1243310), (404, 855545), (505, 684436), (556, 621655), (695, 497324), (1010, 342218), (1231, 280780), (1390, 248662), (2020, 171109), (2462, 140390), (2780, 124331), (4924, 70195), (6155, 56156), (12310, 28078), (14039, 24620)]