15204945

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{151}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 28695168

約数和(自身を除く): 13490223

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 137, 147, 151, 245, 411, 453, 685, 735, 755, 959, 1057, 2055, 2265, 2877, 3171, 4795, 5285, 6713, 7399, 14385, 15855, 20139, 20687, 22197, 33565, 36995, 62061, 100695, 103435, 110985, 144809, 310305, 434427, 724045, 1013663, 2172135, 3040989, 5068315, 15204945]

約数ペア:

[(1, 15204945), (3, 5068315), (5, 3040989), (7, 2172135), (15, 1013663), (21, 724045), (35, 434427), (49, 310305), (105, 144809), (137, 110985), (147, 103435), (151, 100695), (245, 62061), (411, 36995), (453, 33565), (685, 22197), (735, 20687), (755, 20139), (959, 15855), (1057, 14385), (2055, 7399), (2265, 6713), (2877, 5285), (3171, 4795)]