90680840

素因数分解:

$2^3\times 5^1\times {\mathrm{503}}^1\times {\mathrm{4507}}^1$

素因数の和:5021

約数の個数: 32

約数和(自身を含む): 204482880

約数和(自身を除く): 113802040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503, 1006, 2012, 2515, 4024, 4507, 5030, 9014, 10060, 18028, 20120, 22535, 36056, 45070, 90140, 180280, 2267021, 4534042, 9068084, 11335105, 18136168, 22670210, 45340420, 90680840]

約数ペア:

[(1, 90680840), (2, 45340420), (4, 22670210), (5, 18136168), (8, 11335105), (10, 9068084), (20, 4534042), (40, 2267021), (503, 180280), (1006, 90140), (2012, 45070), (2515, 36056), (4024, 22535), (4507, 20120), (5030, 18028), (9014, 10060)]