18254960

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1319}}^1$

素因数の和:1505

約数の個数: 40

約数和(自身を含む): 42720480

約数和(自身を除く): 24465520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 346, 692, 865, 1319, 1384, 1730, 2638, 2768, 3460, 5276, 6595, 6920, 10552, 13190, 13840, 21104, 26380, 52760, 105520, 228187, 456374, 912748, 1140935, 1825496, 2281870, 3650992, 4563740, 9127480, 18254960]

約数ペア:

[(1, 18254960), (2, 9127480), (4, 4563740), (5, 3650992), (8, 2281870), (10, 1825496), (16, 1140935), (20, 912748), (40, 456374), (80, 228187), (173, 105520), (346, 52760), (692, 26380), (865, 21104), (1319, 13840), (1384, 13190), (1730, 10552), (2638, 6920), (2768, 6595), (3460, 5276)]