1381040

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{283}}^1$

素因数の和:357

約数の個数: 40

約数和(自身を含む): 3275088

約数和(自身を除く): 1894048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 283, 305, 488, 566, 610, 976, 1132, 1220, 1415, 2264, 2440, 2830, 4528, 4880, 5660, 11320, 17263, 22640, 34526, 69052, 86315, 138104, 172630, 276208, 345260, 690520, 1381040]

約数ペア:

[(1, 1381040), (2, 690520), (4, 345260), (5, 276208), (8, 172630), (10, 138104), (16, 86315), (20, 69052), (40, 34526), (61, 22640), (80, 17263), (122, 11320), (244, 5660), (283, 4880), (305, 4528), (488, 2830), (566, 2440), (610, 2264), (976, 1415), (1132, 1220)]