1971445

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:145

約数の個数: 32

約数和(自身を含む): 2949120

約数和(自身を除く): 977675

約数列:

[1, 5, 7, 23, 31, 35, 79, 115, 155, 161, 217, 395, 553, 713, 805, 1085, 1817, 2449, 2765, 3565, 4991, 9085, 12245, 12719, 17143, 24955, 56327, 63595, 85715, 281635, 394289, 1971445]

約数ペア:

[(1, 1971445), (5, 394289), (7, 281635), (23, 85715), (31, 63595), (35, 56327), (79, 24955), (115, 17143), (155, 12719), (161, 12245), (217, 9085), (395, 4991), (553, 3565), (713, 2765), (805, 2449), (1085, 1817)]