79972020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{444289}}^1$

素因数の和:444304

約数の個数: 36

約数和(自身を含む): 242582340

約数和(自身を除く): 162610320

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 444289, 888578, 1332867, 1777156, 2221445, 2665734, 3998601, 4442890, 5331468, 6664335, 7997202, 8885780, 13328670, 15994404, 19993005, 26657340, 39986010, 79972020]

約数ペア:

[(1, 79972020), (2, 39986010), (3, 26657340), (4, 19993005), (5, 15994404), (6, 13328670), (9, 8885780), (10, 7997202), (12, 6664335), (15, 5331468), (18, 4442890), (20, 3998601), (30, 2665734), (36, 2221445), (45, 1777156), (60, 1332867), (90, 888578), (180, 444289)]