720780723

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{571}}^1\times {\mathrm{10789}}^1$

素因数の和:11379

約数の個数: 24

約数和(自身を含む): 1123282160

約数和(自身を除く): 402501437

約数列:

[1, 3, 9, 13, 39, 117, 571, 1713, 5139, 7423, 10789, 22269, 32367, 66807, 97101, 140257, 420771, 1262313, 6160519, 18481557, 55444671, 80086747, 240260241, 720780723]

約数ペア:

[(1, 720780723), (3, 240260241), (9, 80086747), (13, 55444671), (39, 18481557), (117, 6160519), (571, 1262313), (1713, 420771), (5139, 140257), (7423, 97101), (10789, 66807), (22269, 32367)]