72901640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{260363}}^1$

素因数の和:260381

約数の個数: 32

約数和(自身を含む): 187462080

約数和(自身を除く): 114560440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 260363, 520726, 1041452, 1301815, 1822541, 2082904, 2603630, 3645082, 5207260, 7290164, 9112705, 10414520, 14580328, 18225410, 36450820, 72901640]

約数ペア:

[(1, 72901640), (2, 36450820), (4, 18225410), (5, 14580328), (7, 10414520), (8, 9112705), (10, 7290164), (14, 5207260), (20, 3645082), (28, 2603630), (35, 2082904), (40, 1822541), (56, 1301815), (70, 1041452), (140, 520726), (280, 260363)]