201001250

素因数分解:

$2^1\times 5^4\times {\mathrm{401}}^2$

素因数の和:824

約数の個数: 30

約数和(自身を含む): 377698629

約数和(自身を除く): 176697379

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 401, 625, 802, 1250, 2005, 4010, 10025, 20050, 50125, 100250, 160801, 250625, 321602, 501250, 804005, 1608010, 4020025, 8040050, 20100125, 40200250, 100500625, 201001250]

約数ペア:

[(1, 201001250), (2, 100500625), (5, 40200250), (10, 20100125), (25, 8040050), (50, 4020025), (125, 1608010), (250, 804005), (401, 501250), (625, 321602), (802, 250625), (1250, 160801), (2005, 100250), (4010, 50125), (10025, 20050)]