1273240

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 2898000

約数和(自身を除く): 1624760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 229, 278, 458, 556, 695, 916, 1112, 1145, 1390, 1832, 2290, 2780, 4580, 5560, 9160, 31831, 63662, 127324, 159155, 254648, 318310, 636620, 1273240]

約数ペア:

[(1, 1273240), (2, 636620), (4, 318310), (5, 254648), (8, 159155), (10, 127324), (20, 63662), (40, 31831), (139, 9160), (229, 5560), (278, 4580), (458, 2780), (556, 2290), (695, 1832), (916, 1390), (1112, 1145)]