17819440

素因数分解:

$2^4\times 5^1\times {\mathrm{353}}^1\times {\mathrm{631}}^1$

素因数の和:997

約数の個数: 40

約数和(自身を含む): 41613408

約数和(自身を除く): 23793968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353, 631, 706, 1262, 1412, 1765, 2524, 2824, 3155, 3530, 5048, 5648, 6310, 7060, 10096, 12620, 14120, 25240, 28240, 50480, 222743, 445486, 890972, 1113715, 1781944, 2227430, 3563888, 4454860, 8909720, 17819440]

約数ペア:

[(1, 17819440), (2, 8909720), (4, 4454860), (5, 3563888), (8, 2227430), (10, 1781944), (16, 1113715), (20, 890972), (40, 445486), (80, 222743), (353, 50480), (631, 28240), (706, 25240), (1262, 14120), (1412, 12620), (1765, 10096), (2524, 7060), (2824, 6310), (3155, 5648), (3530, 5048)]