87803180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{1009}}^1$

素因数の和:1266

約数の個数: 48

約数和(自身を含む): 195132000

約数和(自身を除く): 107328820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 229, 380, 458, 916, 1009, 1145, 2018, 2290, 4036, 4351, 4580, 5045, 8702, 10090, 17404, 19171, 20180, 21755, 38342, 43510, 76684, 87020, 95855, 191710, 231061, 383420, 462122, 924244, 1155305, 2310610, 4390159, 4621220, 8780318, 17560636, 21950795, 43901590, 87803180]

約数ペア:

[(1, 87803180), (2, 43901590), (4, 21950795), (5, 17560636), (10, 8780318), (19, 4621220), (20, 4390159), (38, 2310610), (76, 1155305), (95, 924244), (190, 462122), (229, 383420), (380, 231061), (458, 191710), (916, 95855), (1009, 87020), (1145, 76684), (2018, 43510), (2290, 38342), (4036, 21755), (4351, 20180), (4580, 19171), (5045, 17404), (8702, 10090)]