385997123620

素因数分解:

$2^2\times 5^1\times {\mathrm{907}}^1\times {\mathrm{1987}}^1\times {\mathrm{10709}}^1$

素因数の和:13612

約数の個数: 48

約数和(自身を含む): 811971881280

約数和(自身を除く): 425974757660

約数列:

[1, 2, 4, 5, 10, 20, 907, 1814, 1987, 3628, 3974, 4535, 7948, 9070, 9935, 10709, 18140, 19870, 21418, 39740, 42836, 53545, 107090, 214180, 1802209, 3604418, 7208836, 9011045, 9713063, 18022090, 19426126, 21278783, 36044180, 38852252, 42557566, 48565315, 85115132, 97130630, 106393915, 194261260, 212787830, 425575660, 19299856181, 38599712362, 77199424724, 96499280905, 192998561810, 385997123620]

約数ペア:

[(1, 385997123620), (2, 192998561810), (4, 96499280905), (5, 77199424724), (10, 38599712362), (20, 19299856181), (907, 425575660), (1814, 212787830), (1987, 194261260), (3628, 106393915), (3974, 97130630), (4535, 85115132), (7948, 48565315), (9070, 42557566), (9935, 38852252), (10709, 36044180), (18140, 21278783), (19870, 19426126), (21418, 18022090), (39740, 9713063), (42836, 9011045), (53545, 7208836), (107090, 3604418), (214180, 1802209)]