25845280

素因数分解:

$2^5\times 5^1\times {\mathrm{163}}^1\times {\mathrm{991}}^1$

素因数の和:1169

約数の個数: 48

約数和(自身を含む): 61496064

約数和(自身を除く): 35650784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 163, 326, 652, 815, 991, 1304, 1630, 1982, 2608, 3260, 3964, 4955, 5216, 6520, 7928, 9910, 13040, 15856, 19820, 26080, 31712, 39640, 79280, 158560, 161533, 323066, 646132, 807665, 1292264, 1615330, 2584528, 3230660, 5169056, 6461320, 12922640, 25845280]

約数ペア:

[(1, 25845280), (2, 12922640), (4, 6461320), (5, 5169056), (8, 3230660), (10, 2584528), (16, 1615330), (20, 1292264), (32, 807665), (40, 646132), (80, 323066), (160, 161533), (163, 158560), (326, 79280), (652, 39640), (815, 31712), (991, 26080), (1304, 19820), (1630, 15856), (1982, 13040), (2608, 9910), (3260, 7928), (3964, 6520), (4955, 5216)]