205780250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{63317}}^1$

素因数の和:63347

約数の個数: 32

約数和(自身を含む): 414859536

約数和(自身を除く): 209079286

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 650, 1625, 3250, 63317, 126634, 316585, 633170, 823121, 1582925, 1646242, 3165850, 4115605, 7914625, 8231210, 15829250, 20578025, 41156050, 102890125, 205780250]

約数ペア:

[(1, 205780250), (2, 102890125), (5, 41156050), (10, 20578025), (13, 15829250), (25, 8231210), (26, 7914625), (50, 4115605), (65, 3165850), (125, 1646242), (130, 1582925), (250, 823121), (325, 633170), (650, 316585), (1625, 126634), (3250, 63317)]