215139780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{398407}}^1$

素因数の和:398425

約数の個数: 48

約数和(自身を含む): 669325440

約数和(自身を除く): 454185660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 398407, 796814, 1195221, 1593628, 1992035, 2390442, 3585663, 3984070, 4780884, 5976105, 7171326, 7968140, 10756989, 11952210, 14342652, 17928315, 21513978, 23904420, 35856630, 43027956, 53784945, 71713260, 107569890, 215139780]

約数ペア:

[(1, 215139780), (2, 107569890), (3, 71713260), (4, 53784945), (5, 43027956), (6, 35856630), (9, 23904420), (10, 21513978), (12, 17928315), (15, 14342652), (18, 11952210), (20, 10756989), (27, 7968140), (30, 7171326), (36, 5976105), (45, 4780884), (54, 3984070), (60, 3585663), (90, 2390442), (108, 1992035), (135, 1593628), (180, 1195221), (270, 796814), (540, 398407)]