8144720

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1669}}^1$

素因数の和:1743

約数の個数: 40

約数和(自身を含む): 19258440

約数和(自身を除く): 11113720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 1669, 2440, 3338, 4880, 6676, 8345, 13352, 16690, 26704, 33380, 66760, 101809, 133520, 203618, 407236, 509045, 814472, 1018090, 1628944, 2036180, 4072360, 8144720]

約数ペア:

[(1, 8144720), (2, 4072360), (4, 2036180), (5, 1628944), (8, 1018090), (10, 814472), (16, 509045), (20, 407236), (40, 203618), (61, 133520), (80, 101809), (122, 66760), (244, 33380), (305, 26704), (488, 16690), (610, 13352), (976, 8345), (1220, 6676), (1669, 4880), (2440, 3338)]