987586990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{313}}^1\times {\mathrm{1867}}^1$

素因数の和:2213

約数の個数: 48

約数和(自身を含む): 1932102288

約数和(自身を除く): 944515298

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 313, 338, 626, 845, 1565, 1690, 1867, 3130, 3734, 4069, 8138, 9335, 18670, 20345, 24271, 40690, 48542, 52897, 105794, 121355, 242710, 264485, 315523, 528970, 584371, 631046, 1168742, 1577615, 2921855, 3155230, 5843710, 7596823, 15193646, 37984115, 75968230, 98758699, 197517398, 493793495, 987586990]

約数ペア:

[(1, 987586990), (2, 493793495), (5, 197517398), (10, 98758699), (13, 75968230), (26, 37984115), (65, 15193646), (130, 7596823), (169, 5843710), (313, 3155230), (338, 2921855), (626, 1577615), (845, 1168742), (1565, 631046), (1690, 584371), (1867, 528970), (3130, 315523), (3734, 264485), (4069, 242710), (8138, 121355), (9335, 105794), (18670, 52897), (20345, 48542), (24271, 40690)]