80902520

素因数分解:

$2^3\times 5^1\times {\mathrm{503}}^1\times {\mathrm{4021}}^1$

素因数の和:4535

約数の個数: 32

約数和(自身を含む): 182437920

約数和(自身を除く): 101535400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503, 1006, 2012, 2515, 4021, 4024, 5030, 8042, 10060, 16084, 20105, 20120, 32168, 40210, 80420, 160840, 2022563, 4045126, 8090252, 10112815, 16180504, 20225630, 40451260, 80902520]

約数ペア:

[(1, 80902520), (2, 40451260), (4, 20225630), (5, 16180504), (8, 10112815), (10, 8090252), (20, 4045126), (40, 2022563), (503, 160840), (1006, 80420), (2012, 40210), (2515, 32168), (4021, 20120), (4024, 20105), (5030, 16084), (8042, 10060)]