80485000

素因数分解:

$2^3\times 5^4\times {\mathrm{16097}}^1$

素因数の和:16123

約数の個数: 40

約数和(自身を含む): 188588070

約数和(自身を除く): 108103070

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 5000, 16097, 32194, 64388, 80485, 128776, 160970, 321940, 402425, 643880, 804850, 1609700, 2012125, 3219400, 4024250, 8048500, 10060625, 16097000, 20121250, 40242500, 80485000]

約数ペア:

[(1, 80485000), (2, 40242500), (4, 20121250), (5, 16097000), (8, 10060625), (10, 8048500), (20, 4024250), (25, 3219400), (40, 2012125), (50, 1609700), (100, 804850), (125, 643880), (200, 402425), (250, 321940), (500, 160970), (625, 128776), (1000, 80485), (1250, 64388), (2500, 32194), (5000, 16097)]