28396125

素因数分解:

$3^2\times 5^3\times {\mathrm{43}}^1\times {\mathrm{587}}^1$

素因数の和:651

約数の個数: 48

約数和(自身を含む): 52468416

約数和(自身を除く): 24072291

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 125, 129, 215, 225, 375, 387, 587, 645, 1075, 1125, 1761, 1935, 2935, 3225, 5283, 5375, 8805, 9675, 14675, 16125, 25241, 26415, 44025, 48375, 73375, 75723, 126205, 132075, 220125, 227169, 378615, 631025, 660375, 1135845, 1893075, 3155125, 5679225, 9465375, 28396125]

約数ペア:

[(1, 28396125), (3, 9465375), (5, 5679225), (9, 3155125), (15, 1893075), (25, 1135845), (43, 660375), (45, 631025), (75, 378615), (125, 227169), (129, 220125), (215, 132075), (225, 126205), (375, 75723), (387, 73375), (587, 48375), (645, 44025), (1075, 26415), (1125, 25241), (1761, 16125), (1935, 14675), (2935, 9675), (3225, 8805), (5283, 5375)]