1916704640

素因数分解:

$2^7\times 5^1\times {\mathrm{71}}^1\times {\mathrm{42181}}^1$

素因数の和:42271

約数の個数: 64

約数和(自身を含む): 4646769120

約数和(自身を除く): 2730064480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 284, 320, 355, 568, 640, 710, 1136, 1420, 2272, 2840, 4544, 5680, 9088, 11360, 22720, 42181, 45440, 84362, 168724, 210905, 337448, 421810, 674896, 843620, 1349792, 1687240, 2699584, 2994851, 3374480, 5399168, 5989702, 6748960, 11979404, 13497920, 14974255, 23958808, 26995840, 29948510, 47917616, 59897020, 95835232, 119794040, 191670464, 239588080, 383340928, 479176160, 958352320, 1916704640]

約数ペア:

[(1, 1916704640), (2, 958352320), (4, 479176160), (5, 383340928), (8, 239588080), (10, 191670464), (16, 119794040), (20, 95835232), (32, 59897020), (40, 47917616), (64, 29948510), (71, 26995840), (80, 23958808), (128, 14974255), (142, 13497920), (160, 11979404), (284, 6748960), (320, 5989702), (355, 5399168), (568, 3374480), (640, 2994851), (710, 2699584), (1136, 1687240), (1420, 1349792), (2272, 843620), (2840, 674896), (4544, 421810), (5680, 337448), (9088, 210905), (11360, 168724), (22720, 84362), (42181, 45440)]