28049125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1$

素因数の和:490

約数の個数: 32

約数和(自身を含む): 38709216

約数和(自身を除く): 10660091

約数列:

[1, 5, 13, 25, 41, 65, 125, 205, 325, 421, 533, 1025, 1625, 2105, 2665, 5125, 5473, 10525, 13325, 17261, 27365, 52625, 66625, 86305, 136825, 224393, 431525, 684125, 1121965, 2157625, 5609825, 28049125]

約数ペア:

[(1, 28049125), (5, 5609825), (13, 2157625), (25, 1121965), (41, 684125), (65, 431525), (125, 224393), (205, 136825), (325, 86305), (421, 66625), (533, 52625), (1025, 27365), (1625, 17261), (2105, 13325), (2665, 10525), (5125, 5473)]