15990920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{36343}}^1$

素因数の和:36365

約数の個数: 32

約数和(自身を含む): 39251520

約数和(自身を除く): 23260600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 36343, 72686, 145372, 181715, 290744, 363430, 399773, 726860, 799546, 1453720, 1599092, 1998865, 3198184, 3997730, 7995460, 15990920]

約数ペア:

[(1, 15990920), (2, 7995460), (4, 3997730), (5, 3198184), (8, 1998865), (10, 1599092), (11, 1453720), (20, 799546), (22, 726860), (40, 399773), (44, 363430), (55, 290744), (88, 181715), (110, 145372), (220, 72686), (440, 36343)]