1285185555

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{7057}}^1$

素因数の和:7161

約数の個数: 64

約数和(自身を含む): 2439244800

約数和(自身を除く): 1154059245

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 71, 95, 135, 171, 213, 285, 355, 513, 639, 855, 1065, 1349, 1917, 2565, 3195, 4047, 6745, 7057, 9585, 12141, 20235, 21171, 35285, 36423, 60705, 63513, 105855, 134083, 182115, 190539, 317565, 402249, 501047, 670415, 952695, 1206747, 1503141, 2011245, 2505235, 3620241, 4509423, 6033735, 7515705, 9519893, 13528269, 18101205, 22547115, 28559679, 47599465, 67641345, 85679037, 142798395, 257037111, 428395185, 1285185555]

約数ペア:

[(1, 1285185555), (3, 428395185), (5, 257037111), (9, 142798395), (15, 85679037), (19, 67641345), (27, 47599465), (45, 28559679), (57, 22547115), (71, 18101205), (95, 13528269), (135, 9519893), (171, 7515705), (213, 6033735), (285, 4509423), (355, 3620241), (513, 2505235), (639, 2011245), (855, 1503141), (1065, 1206747), (1349, 952695), (1917, 670415), (2565, 501047), (3195, 402249), (4047, 317565), (6745, 190539), (7057, 182115), (9585, 134083), (12141, 105855), (20235, 63513), (21171, 60705), (35285, 36423)]