15681520

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{929}}^1$

素因数の和:1153

約数の個数: 40

約数和(自身を含む): 36671760

約数和(自身を除く): 20990240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 422, 844, 929, 1055, 1688, 1858, 2110, 3376, 3716, 4220, 4645, 7432, 8440, 9290, 14864, 16880, 18580, 37160, 74320, 196019, 392038, 784076, 980095, 1568152, 1960190, 3136304, 3920380, 7840760, 15681520]

約数ペア:

[(1, 15681520), (2, 7840760), (4, 3920380), (5, 3136304), (8, 1960190), (10, 1568152), (16, 980095), (20, 784076), (40, 392038), (80, 196019), (211, 74320), (422, 37160), (844, 18580), (929, 16880), (1055, 14864), (1688, 9290), (1858, 8440), (2110, 7432), (3376, 4645), (3716, 4220)]