188405840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{839}}^1$

素因数の和:1260

約数の個数: 80

約数和(自身を含む): 502467840

約数和(自身を除く): 314062000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 401, 560, 802, 839, 1604, 1678, 2005, 2807, 3208, 3356, 4010, 4195, 5614, 5873, 6416, 6712, 8020, 8390, 11228, 11746, 13424, 14035, 16040, 16780, 22456, 23492, 28070, 29365, 32080, 33560, 44912, 46984, 56140, 58730, 67120, 93968, 112280, 117460, 224560, 234920, 336439, 469840, 672878, 1345756, 1682195, 2355073, 2691512, 3364390, 4710146, 5383024, 6728780, 9420292, 11775365, 13457560, 18840584, 23550730, 26915120, 37681168, 47101460, 94202920, 188405840]

約数ペア:

[(1, 188405840), (2, 94202920), (4, 47101460), (5, 37681168), (7, 26915120), (8, 23550730), (10, 18840584), (14, 13457560), (16, 11775365), (20, 9420292), (28, 6728780), (35, 5383024), (40, 4710146), (56, 3364390), (70, 2691512), (80, 2355073), (112, 1682195), (140, 1345756), (280, 672878), (401, 469840), (560, 336439), (802, 234920), (839, 224560), (1604, 117460), (1678, 112280), (2005, 93968), (2807, 67120), (3208, 58730), (3356, 56140), (4010, 46984), (4195, 44912), (5614, 33560), (5873, 32080), (6416, 29365), (6712, 28070), (8020, 23492), (8390, 22456), (11228, 16780), (11746, 16040), (13424, 14035)]