61305520

素因数分解:

$2^4\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1109}}^1$

素因数の和:1813

約数の個数: 40

約数和(自身を含む): 142870320

約数和(自身を除く): 81564800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 691, 1109, 1382, 2218, 2764, 3455, 4436, 5528, 5545, 6910, 8872, 11056, 11090, 13820, 17744, 22180, 27640, 44360, 55280, 88720, 766319, 1532638, 3065276, 3831595, 6130552, 7663190, 12261104, 15326380, 30652760, 61305520]

約数ペア:

[(1, 61305520), (2, 30652760), (4, 15326380), (5, 12261104), (8, 7663190), (10, 6130552), (16, 3831595), (20, 3065276), (40, 1532638), (80, 766319), (691, 88720), (1109, 55280), (1382, 44360), (2218, 27640), (2764, 22180), (3455, 17744), (4436, 13820), (5528, 11090), (5545, 11056), (6910, 8872)]