257412960

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{25537}}^1$

素因数の和:25565

約数の個数: 144

約数和(自身を含む): 1003949856

約数和(自身を除く): 746536896

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 10080, 25537, 51074, 76611, 102148, 127685, 153222, 178759, 204296, 229833, 255370, 306444, 357518, 383055, 408592, 459666, 510740, 536277, 612888, 715036, 766110, 817184, 893795, 919332, 1021480, 1072554, 1149165, 1225776, 1430072, 1532220, 1608831, 1787590, 1838664, 2042960, 2145108, 2298330, 2451552, 2681385, 2860144, 3064440, 3217662, 3575180, 3677328, 4085920, 4290216, 4596660, 5362770, 5720288, 6128880, 6435324, 7150360, 7354656, 8044155, 8580432, 9193320, 10725540, 12257760, 12870648, 14300720, 16088310, 17160864, 18386640, 21451080, 25741296, 28601440, 32176620, 36773280, 42902160, 51482592, 64353240, 85804320, 128706480, 257412960]

約数ペア:

[(1, 257412960), (2, 128706480), (3, 85804320), (4, 64353240), (5, 51482592), (6, 42902160), (7, 36773280), (8, 32176620), (9, 28601440), (10, 25741296), (12, 21451080), (14, 18386640), (15, 17160864), (16, 16088310), (18, 14300720), (20, 12870648), (21, 12257760), (24, 10725540), (28, 9193320), (30, 8580432), (32, 8044155), (35, 7354656), (36, 7150360), (40, 6435324), (42, 6128880), (45, 5720288), (48, 5362770), (56, 4596660), (60, 4290216), (63, 4085920), (70, 3677328), (72, 3575180), (80, 3217662), (84, 3064440), (90, 2860144), (96, 2681385), (105, 2451552), (112, 2298330), (120, 2145108), (126, 2042960), (140, 1838664), (144, 1787590), (160, 1608831), (168, 1532220), (180, 1430072), (210, 1225776), (224, 1149165), (240, 1072554), (252, 1021480), (280, 919332), (288, 893795), (315, 817184), (336, 766110), (360, 715036), (420, 612888), (480, 536277), (504, 510740), (560, 459666), (630, 408592), (672, 383055), (720, 357518), (840, 306444), (1008, 255370), (1120, 229833), (1260, 204296), (1440, 178759), (1680, 153222), (2016, 127685), (2520, 102148), (3360, 76611), (5040, 51074), (10080, 25537)]