20171695480

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1257587}}^1$

素因数の和:1257999

約数の個数: 32

約数和(自身を含む): 45499533840

約数和(自身を除く): 25327838360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 4010, 8020, 16040, 1257587, 2515174, 5030348, 6287935, 10060696, 12575870, 25151740, 50303480, 504292387, 1008584774, 2017169548, 2521461935, 4034339096, 5042923870, 10085847740, 20171695480]

約数ペア:

[(1, 20171695480), (2, 10085847740), (4, 5042923870), (5, 4034339096), (8, 2521461935), (10, 2017169548), (20, 1008584774), (40, 504292387), (401, 50303480), (802, 25151740), (1604, 12575870), (2005, 10060696), (3208, 6287935), (4010, 5030348), (8020, 2515174), (16040, 1257587)]