81891145

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{383}}^1$

素因数の和:585

約数の個数: 32

約数和(自身を含む): 116121600

約数和(自身を除く): 34230455

約数列:

[1, 5, 7, 35, 41, 149, 205, 287, 383, 745, 1043, 1435, 1915, 2681, 5215, 6109, 13405, 15703, 30545, 42763, 57067, 78515, 109921, 213815, 285335, 399469, 549605, 1997345, 2339747, 11698735, 16378229, 81891145]

約数ペア:

[(1, 81891145), (5, 16378229), (7, 11698735), (35, 2339747), (41, 1997345), (149, 549605), (205, 399469), (287, 285335), (383, 213815), (745, 109921), (1043, 78515), (1435, 57067), (1915, 42763), (2681, 30545), (5215, 15703), (6109, 13405)]