2154520

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{883}}^1$

素因数の和:955

約数の個数: 32

約数和(自身を含む): 4932720

約数和(自身を除く): 2778200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 883, 1220, 1766, 2440, 3532, 4415, 7064, 8830, 17660, 35320, 53863, 107726, 215452, 269315, 430904, 538630, 1077260, 2154520]

約数ペア:

[(1, 2154520), (2, 1077260), (4, 538630), (5, 430904), (8, 269315), (10, 215452), (20, 107726), (40, 53863), (61, 35320), (122, 17660), (244, 8830), (305, 7064), (488, 4415), (610, 3532), (883, 2440), (1220, 1766)]