178213840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2027}}^1$

素因数の和:2204

約数の個数: 80

約数和(自身を含む): 476790912

約数和(自身を除く): 298577072

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 157, 280, 314, 560, 628, 785, 1099, 1256, 1570, 2027, 2198, 2512, 3140, 4054, 4396, 5495, 6280, 8108, 8792, 10135, 10990, 12560, 14189, 16216, 17584, 20270, 21980, 28378, 32432, 40540, 43960, 56756, 70945, 81080, 87920, 113512, 141890, 162160, 227024, 283780, 318239, 567560, 636478, 1135120, 1272956, 1591195, 2227673, 2545912, 3182390, 4455346, 5091824, 6364780, 8910692, 11138365, 12729560, 17821384, 22276730, 25459120, 35642768, 44553460, 89106920, 178213840]

約数ペア:

[(1, 178213840), (2, 89106920), (4, 44553460), (5, 35642768), (7, 25459120), (8, 22276730), (10, 17821384), (14, 12729560), (16, 11138365), (20, 8910692), (28, 6364780), (35, 5091824), (40, 4455346), (56, 3182390), (70, 2545912), (80, 2227673), (112, 1591195), (140, 1272956), (157, 1135120), (280, 636478), (314, 567560), (560, 318239), (628, 283780), (785, 227024), (1099, 162160), (1256, 141890), (1570, 113512), (2027, 87920), (2198, 81080), (2512, 70945), (3140, 56756), (4054, 43960), (4396, 40540), (5495, 32432), (6280, 28378), (8108, 21980), (8792, 20270), (10135, 17584), (10990, 16216), (12560, 14189)]