390631695

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{19391}}^1$

素因数の和:19495

約数の個数: 32

約数和(自身を含む): 670187520

約数和(自身を除く): 279555825

約数列:

[1, 3, 5, 15, 17, 51, 79, 85, 237, 255, 395, 1185, 1343, 4029, 6715, 19391, 20145, 58173, 96955, 290865, 329647, 988941, 1531889, 1648235, 4595667, 4944705, 7659445, 22978335, 26042113, 78126339, 130210565, 390631695]

約数ペア:

[(1, 390631695), (3, 130210565), (5, 78126339), (15, 26042113), (17, 22978335), (51, 7659445), (79, 4944705), (85, 4595667), (237, 1648235), (255, 1531889), (395, 988941), (1185, 329647), (1343, 290865), (4029, 96955), (6715, 58173), (19391, 20145)]