20778840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{57719}}^1$

素因数の和:57736

約数の個数: 48

約数和(自身を含む): 67532400

約数和(自身を除く): 46753560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 57719, 115438, 173157, 230876, 288595, 346314, 461752, 519471, 577190, 692628, 865785, 1038942, 1154380, 1385256, 1731570, 2077884, 2308760, 2597355, 3463140, 4155768, 5194710, 6926280, 10389420, 20778840]

約数ペア:

[(1, 20778840), (2, 10389420), (3, 6926280), (4, 5194710), (5, 4155768), (6, 3463140), (8, 2597355), (9, 2308760), (10, 2077884), (12, 1731570), (15, 1385256), (18, 1154380), (20, 1038942), (24, 865785), (30, 692628), (36, 577190), (40, 519471), (45, 461752), (60, 346314), (72, 288595), (90, 230876), (120, 173157), (180, 115438), (360, 57719)]