100644400

素因数分解:

$2^4\times 5^2\times {\mathrm{251611}}^1$

素因数の和:251629

約数の個数: 30

約数和(自身を含む): 241799132

約数和(自身を除く): 141154732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 251611, 503222, 1006444, 1258055, 2012888, 2516110, 4025776, 5032220, 6290275, 10064440, 12580550, 20128880, 25161100, 50322200, 100644400]

約数ペア:

[(1, 100644400), (2, 50322200), (4, 25161100), (5, 20128880), (8, 12580550), (10, 10064440), (16, 6290275), (20, 5032220), (25, 4025776), (40, 2516110), (50, 2012888), (80, 1258055), (100, 1006444), (200, 503222), (400, 251611)]