8748620

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 19123776

約数和(自身を除く): 10375156

約数列:

[1, 2, 4, 5, 10, 20, 61, 71, 101, 122, 142, 202, 244, 284, 305, 355, 404, 505, 610, 710, 1010, 1220, 1420, 2020, 4331, 6161, 7171, 8662, 12322, 14342, 17324, 21655, 24644, 28684, 30805, 35855, 43310, 61610, 71710, 86620, 123220, 143420, 437431, 874862, 1749724, 2187155, 4374310, 8748620]

約数ペア:

[(1, 8748620), (2, 4374310), (4, 2187155), (5, 1749724), (10, 874862), (20, 437431), (61, 143420), (71, 123220), (101, 86620), (122, 71710), (142, 61610), (202, 43310), (244, 35855), (284, 30805), (305, 28684), (355, 24644), (404, 21655), (505, 17324), (610, 14342), (710, 12322), (1010, 8662), (1220, 7171), (1420, 6161), (2020, 4331)]