28119975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{191}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 50663424

約数和(自身を除く): 22543449

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 151, 191, 195, 325, 453, 573, 755, 955, 975, 1963, 2265, 2483, 2865, 3775, 4775, 5889, 7449, 9815, 11325, 12415, 14325, 28841, 29445, 37245, 49075, 62075, 86523, 144205, 147225, 186225, 374933, 432615, 721025, 1124799, 1874665, 2163075, 5623995, 9373325, 28119975]

約数ペア:

[(1, 28119975), (3, 9373325), (5, 5623995), (13, 2163075), (15, 1874665), (25, 1124799), (39, 721025), (65, 432615), (75, 374933), (151, 186225), (191, 147225), (195, 144205), (325, 86523), (453, 62075), (573, 49075), (755, 37245), (955, 29445), (975, 28841), (1963, 14325), (2265, 12415), (2483, 11325), (2865, 9815), (3775, 7449), (4775, 5889)]