20757910

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2309}}^1$

素因数の和:2376

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 19158890

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 145, 155, 290, 310, 899, 1798, 2309, 4495, 4618, 8990, 11545, 23090, 66961, 71579, 133922, 143158, 334805, 357895, 669610, 715790, 2075791, 4151582, 10378955, 20757910]

約数ペア:

[(1, 20757910), (2, 10378955), (5, 4151582), (10, 2075791), (29, 715790), (31, 669610), (58, 357895), (62, 334805), (145, 143158), (155, 133922), (290, 71579), (310, 66961), (899, 23090), (1798, 11545), (2309, 8990), (4495, 4618)]