19486820375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{4751}}^1$

素因数の和:4953

約数の個数: 64

約数和(自身を含む): 28110551040

約数和(自身を除く): 8623730665

約数列:

[1, 5, 11, 19, 25, 55, 95, 125, 157, 209, 275, 475, 785, 1045, 1375, 1727, 2375, 2983, 3925, 4751, 5225, 8635, 14915, 19625, 23755, 26125, 32813, 43175, 52261, 74575, 90269, 118775, 164065, 215875, 261305, 372875, 451345, 593875, 745907, 820325, 992959, 1306525, 2256725, 3729535, 4101625, 4964795, 6532625, 8204977, 11283625, 14172233, 18647675, 24823975, 41024885, 70861165, 93238375, 124119875, 155894563, 205124425, 354305825, 779472815, 1025622125, 1771529125, 3897364075, 19486820375]

約数ペア:

[(1, 19486820375), (5, 3897364075), (11, 1771529125), (19, 1025622125), (25, 779472815), (55, 354305825), (95, 205124425), (125, 155894563), (157, 124119875), (209, 93238375), (275, 70861165), (475, 41024885), (785, 24823975), (1045, 18647675), (1375, 14172233), (1727, 11283625), (2375, 8204977), (2983, 6532625), (3925, 4964795), (4751, 4101625), (5225, 3729535), (8635, 2256725), (14915, 1306525), (19625, 992959), (23755, 820325), (26125, 745907), (32813, 593875), (43175, 451345), (52261, 372875), (74575, 261305), (90269, 215875), (118775, 164065)]