15191720

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{3361}}^1$

素因数の和:3485

約数の個数: 32

約数和(自身を含む): 34494120

約数和(自身を除く): 19302400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 3361, 4520, 6722, 13444, 16805, 26888, 33610, 67220, 134440, 379793, 759586, 1519172, 1898965, 3038344, 3797930, 7595860, 15191720]

約数ペア:

[(1, 15191720), (2, 7595860), (4, 3797930), (5, 3038344), (8, 1898965), (10, 1519172), (20, 759586), (40, 379793), (113, 134440), (226, 67220), (452, 33610), (565, 26888), (904, 16805), (1130, 13444), (2260, 6722), (3361, 4520)]