28460625

素因数分解:

$3^1\times 5^4\times {\mathrm{43}}^1\times {\mathrm{353}}^1$

素因数の和:419

約数の個数: 40

約数和(自身を含む): 48659424

約数和(自身を除く): 20198799

約数列:

[1, 3, 5, 15, 25, 43, 75, 125, 129, 215, 353, 375, 625, 645, 1059, 1075, 1765, 1875, 3225, 5295, 5375, 8825, 15179, 16125, 26475, 26875, 44125, 45537, 75895, 80625, 132375, 220625, 227685, 379475, 661875, 1138425, 1897375, 5692125, 9486875, 28460625]

約数ペア:

[(1, 28460625), (3, 9486875), (5, 5692125), (15, 1897375), (25, 1138425), (43, 661875), (75, 379475), (125, 227685), (129, 220625), (215, 132375), (353, 80625), (375, 75895), (625, 45537), (645, 44125), (1059, 26875), (1075, 26475), (1765, 16125), (1875, 15179), (3225, 8825), (5295, 5375)]