28398075

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{22273}}^1$

素因数の和:22303

約数の個数: 24

約数和(自身を含む): 49715568

約数和(自身を除く): 21317493

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 22273, 66819, 111365, 334095, 378641, 556825, 1135923, 1670475, 1893205, 5679615, 9466025, 28398075]

約数ペア:

[(1, 28398075), (3, 9466025), (5, 5679615), (15, 1893205), (17, 1670475), (25, 1135923), (51, 556825), (75, 378641), (85, 334095), (255, 111365), (425, 66819), (1275, 22273)]