20678035

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1511}}^1$

素因数の和:1563

約数の個数: 32

約数和(自身を含む): 31352832

約数和(自身を除く): 10674797

約数列:

[1, 5, 7, 17, 23, 35, 85, 115, 119, 161, 391, 595, 805, 1511, 1955, 2737, 7555, 10577, 13685, 25687, 34753, 52885, 128435, 173765, 179809, 243271, 590801, 899045, 1216355, 2954005, 4135607, 20678035]

約数ペア:

[(1, 20678035), (5, 4135607), (7, 2954005), (17, 1216355), (23, 899045), (35, 590801), (85, 243271), (115, 179809), (119, 173765), (161, 128435), (391, 52885), (595, 34753), (805, 25687), (1511, 13685), (1955, 10577), (2737, 7555)]