8704180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 19192320

約数和(自身を除く): 10488140

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 101, 124, 139, 155, 202, 278, 310, 404, 505, 556, 620, 695, 1010, 1390, 2020, 2780, 3131, 4309, 6262, 8618, 12524, 14039, 15655, 17236, 21545, 28078, 31310, 43090, 56156, 62620, 70195, 86180, 140390, 280780, 435209, 870418, 1740836, 2176045, 4352090, 8704180]

約数ペア:

[(1, 8704180), (2, 4352090), (4, 2176045), (5, 1740836), (10, 870418), (20, 435209), (31, 280780), (62, 140390), (101, 86180), (124, 70195), (139, 62620), (155, 56156), (202, 43090), (278, 31310), (310, 28078), (404, 21545), (505, 17236), (556, 15655), (620, 14039), (695, 12524), (1010, 8618), (1390, 6262), (2020, 4309), (2780, 3131)]