81368815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1$

素因数の和:463

約数の個数: 32

約数和(自身を含む): 109992960

約数和(自身を除く): 28624145

約数列:

[1, 5, 11, 55, 61, 79, 305, 307, 395, 671, 869, 1535, 3355, 3377, 4345, 4819, 16885, 18727, 24095, 24253, 53009, 93635, 121265, 205997, 265045, 266783, 1029985, 1333915, 1479433, 7397165, 16273763, 81368815]

約数ペア:

[(1, 81368815), (5, 16273763), (11, 7397165), (55, 1479433), (61, 1333915), (79, 1029985), (305, 266783), (307, 265045), (395, 205997), (671, 121265), (869, 93635), (1535, 53009), (3355, 24253), (3377, 24095), (4345, 18727), (4819, 16885)]