375372220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1\times {\mathrm{1999}}^1$

素因数の和:2278

約数の個数: 48

約数和(自身を含む): 811440000

約数和(自身を除く): 436067780

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 229, 410, 458, 820, 916, 1145, 1999, 2290, 3998, 4580, 7996, 9389, 9995, 18778, 19990, 37556, 39980, 46945, 81959, 93890, 163918, 187780, 327836, 409795, 457771, 819590, 915542, 1639180, 1831084, 2288855, 4577710, 9155420, 18768611, 37537222, 75074444, 93843055, 187686110, 375372220]

約数ペア:

[(1, 375372220), (2, 187686110), (4, 93843055), (5, 75074444), (10, 37537222), (20, 18768611), (41, 9155420), (82, 4577710), (164, 2288855), (205, 1831084), (229, 1639180), (410, 915542), (458, 819590), (820, 457771), (916, 409795), (1145, 327836), (1999, 187780), (2290, 163918), (3998, 93890), (4580, 81959), (7996, 46945), (9389, 39980), (9995, 37556), (18778, 19990)]