80451116920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{64879933}}^1$

素因数の和:64879975

約数の個数: 32

約数和(自身を含む): 186854209920

約数和(自身を除く): 106403093000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 64879933, 129759866, 259519732, 324399665, 519039464, 648799330, 1297598660, 2011277923, 2595197320, 4022555846, 8045111692, 10056389615, 16090223384, 20112779230, 40225558460, 80451116920]

約数ペア:

[(1, 80451116920), (2, 40225558460), (4, 20112779230), (5, 16090223384), (8, 10056389615), (10, 8045111692), (20, 4022555846), (31, 2595197320), (40, 2011277923), (62, 1297598660), (124, 648799330), (155, 519039464), (248, 324399665), (310, 259519732), (620, 129759866), (1240, 64879933)]