19005520

素因数分解:

$2^4\times 5^1\times {\mathrm{353}}^1\times {\mathrm{673}}^1$

素因数の和:1039

約数の個数: 40

約数和(自身を含む): 44378856

約数和(自身を除く): 25373336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353, 673, 706, 1346, 1412, 1765, 2692, 2824, 3365, 3530, 5384, 5648, 6730, 7060, 10768, 13460, 14120, 26920, 28240, 53840, 237569, 475138, 950276, 1187845, 1900552, 2375690, 3801104, 4751380, 9502760, 19005520]

約数ペア:

[(1, 19005520), (2, 9502760), (4, 4751380), (5, 3801104), (8, 2375690), (10, 1900552), (16, 1187845), (20, 950276), (40, 475138), (80, 237569), (353, 53840), (673, 28240), (706, 26920), (1346, 14120), (1412, 13460), (1765, 10768), (2692, 7060), (2824, 6730), (3365, 5648), (3530, 5384)]