17938880

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{919}}^1$

素因数の和:997

約数の個数: 56

約数和(自身を含む): 43464480

約数和(自身を除く): 25525600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 160, 244, 305, 320, 488, 610, 919, 976, 1220, 1838, 1952, 2440, 3676, 3904, 4595, 4880, 7352, 9190, 9760, 14704, 18380, 19520, 29408, 36760, 56059, 58816, 73520, 112118, 147040, 224236, 280295, 294080, 448472, 560590, 896944, 1121180, 1793888, 2242360, 3587776, 4484720, 8969440, 17938880]

約数ペア:

[(1, 17938880), (2, 8969440), (4, 4484720), (5, 3587776), (8, 2242360), (10, 1793888), (16, 1121180), (20, 896944), (32, 560590), (40, 448472), (61, 294080), (64, 280295), (80, 224236), (122, 147040), (160, 112118), (244, 73520), (305, 58816), (320, 56059), (488, 36760), (610, 29408), (919, 19520), (976, 18380), (1220, 14704), (1838, 9760), (1952, 9190), (2440, 7352), (3676, 4880), (3904, 4595)]