81458755

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2153}}^1$

素因数の和:2235

約数の個数: 32

約数和(自身を含む): 119107584

約数和(自身を除く): 37648829

約数列:

[1, 5, 7, 23, 35, 47, 115, 161, 235, 329, 805, 1081, 1645, 2153, 5405, 7567, 10765, 15071, 37835, 49519, 75355, 101191, 247595, 346633, 505955, 708337, 1733165, 2327393, 3541685, 11636965, 16291751, 81458755]

約数ペア:

[(1, 81458755), (5, 16291751), (7, 11636965), (23, 3541685), (35, 2327393), (47, 1733165), (115, 708337), (161, 505955), (235, 346633), (329, 247595), (805, 101191), (1081, 75355), (1645, 49519), (2153, 37835), (5405, 15071), (7567, 10765)]