89947760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{160621}}^1$

素因数の和:160641

約数の個数: 40

約数和(自身を含む): 239005536

約数和(自身を除く): 149057776

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 160621, 321242, 642484, 803105, 1124347, 1284968, 1606210, 2248694, 2569936, 3212420, 4497388, 5621735, 6424840, 8994776, 11243470, 12849680, 17989552, 22486940, 44973880, 89947760]

約数ペア:

[(1, 89947760), (2, 44973880), (4, 22486940), (5, 17989552), (7, 12849680), (8, 11243470), (10, 8994776), (14, 6424840), (16, 5621735), (20, 4497388), (28, 3212420), (35, 2569936), (40, 2248694), (56, 1606210), (70, 1284968), (80, 1124347), (112, 803105), (140, 642484), (280, 321242), (560, 160621)]