16289440

素因数分解:

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

素因数の和:1745

約数の個数: 48

約数和(自身を含む): 39138120

約数和(自身を除く): 22848680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1669, 1952, 2440, 3338, 4880, 6676, 8345, 9760, 13352, 16690, 26704, 33380, 53408, 66760, 101809, 133520, 203618, 267040, 407236, 509045, 814472, 1018090, 1628944, 2036180, 3257888, 4072360, 8144720, 16289440]

約数ペア:

[(1, 16289440), (2, 8144720), (4, 4072360), (5, 3257888), (8, 2036180), (10, 1628944), (16, 1018090), (20, 814472), (32, 509045), (40, 407236), (61, 267040), (80, 203618), (122, 133520), (160, 101809), (244, 66760), (305, 53408), (488, 33380), (610, 26704), (976, 16690), (1220, 13352), (1669, 9760), (1952, 8345), (2440, 6676), (3338, 4880)]