128520275

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{1601}}^1$

素因数の和:1656

約数の個数: 36

約数和(自身を含む): 181762920

約数和(自身を除く): 53242645

約数列:

[1, 5, 13, 19, 25, 65, 95, 169, 247, 325, 475, 845, 1235, 1601, 3211, 4225, 6175, 8005, 16055, 20813, 30419, 40025, 80275, 104065, 152095, 270569, 395447, 520325, 760475, 1352845, 1977235, 5140811, 6764225, 9886175, 25704055, 128520275]

約数ペア:

[(1, 128520275), (5, 25704055), (13, 9886175), (19, 6764225), (25, 5140811), (65, 1977235), (95, 1352845), (169, 760475), (247, 520325), (325, 395447), (475, 270569), (845, 152095), (1235, 104065), (1601, 80275), (3211, 40025), (4225, 30419), (6175, 20813), (8005, 16055)]