813895655

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{271}}^1\times {\mathrm{397}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 1052248320

約数和(自身を除く): 238352665

約数列:

[1, 5, 17, 85, 89, 271, 397, 445, 1355, 1513, 1985, 4607, 6749, 7565, 23035, 24119, 33745, 35333, 107587, 120595, 176665, 410023, 537935, 600661, 1828979, 2050115, 3003305, 9144895, 9575243, 47876215, 162779131, 813895655]

約数ペア:

[(1, 813895655), (5, 162779131), (17, 47876215), (85, 9575243), (89, 9144895), (271, 3003305), (397, 2050115), (445, 1828979), (1355, 600661), (1513, 537935), (1985, 410023), (4607, 176665), (6749, 120595), (7565, 107587), (23035, 35333), (24119, 33745)]