9916880

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1097}}^1$

素因数の和:1223

約数の個数: 40

約数和(自身を含む): 23281992

約数和(自身を除く): 13365112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 452, 565, 904, 1097, 1130, 1808, 2194, 2260, 4388, 4520, 5485, 8776, 9040, 10970, 17552, 21940, 43880, 87760, 123961, 247922, 495844, 619805, 991688, 1239610, 1983376, 2479220, 4958440, 9916880]

約数ペア:

[(1, 9916880), (2, 4958440), (4, 2479220), (5, 1983376), (8, 1239610), (10, 991688), (16, 619805), (20, 495844), (40, 247922), (80, 123961), (113, 87760), (226, 43880), (452, 21940), (565, 17552), (904, 10970), (1097, 9040), (1130, 8776), (1808, 5485), (2194, 4520), (2260, 4388)]