20415590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1619}}^1$

素因数の和:1736

約数の個数: 32

約数和(自身を含む): 40007520

約数和(自身を除く): 19591930

約数列:

[1, 2, 5, 10, 13, 26, 65, 97, 130, 194, 485, 970, 1261, 1619, 2522, 3238, 6305, 8095, 12610, 16190, 21047, 42094, 105235, 157043, 210470, 314086, 785215, 1570430, 2041559, 4083118, 10207795, 20415590]

約数ペア:

[(1, 20415590), (2, 10207795), (5, 4083118), (10, 2041559), (13, 1570430), (26, 785215), (65, 314086), (97, 210470), (130, 157043), (194, 105235), (485, 42094), (970, 21047), (1261, 16190), (1619, 12610), (2522, 8095), (3238, 6305)]