87940000

素因数分解:

$2^5\times 5^4\times {\mathrm{4397}}^1$

素因数の和:4427

約数の個数: 60

約数和(自身を含む): 216394794

約数和(自身を除く): 128454794

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 2000, 2500, 4000, 4397, 5000, 8794, 10000, 17588, 20000, 21985, 35176, 43970, 70352, 87940, 109925, 140704, 175880, 219850, 351760, 439700, 549625, 703520, 879400, 1099250, 1758800, 2198500, 2748125, 3517600, 4397000, 5496250, 8794000, 10992500, 17588000, 21985000, 43970000, 87940000]

約数ペア:

[(1, 87940000), (2, 43970000), (4, 21985000), (5, 17588000), (8, 10992500), (10, 8794000), (16, 5496250), (20, 4397000), (25, 3517600), (32, 2748125), (40, 2198500), (50, 1758800), (80, 1099250), (100, 879400), (125, 703520), (160, 549625), (200, 439700), (250, 351760), (400, 219850), (500, 175880), (625, 140704), (800, 109925), (1000, 87940), (1250, 70352), (2000, 43970), (2500, 35176), (4000, 21985), (4397, 20000), (5000, 17588), (8794, 10000)]