64641920

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{307}}^1$

素因数の和:380

約数の個数: 128

約数和(自身を含む): 180956160

約数和(自身を除く): 116314240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 47, 56, 64, 70, 80, 94, 112, 128, 140, 160, 188, 224, 235, 280, 307, 320, 329, 376, 448, 470, 560, 614, 640, 658, 752, 896, 940, 1120, 1228, 1316, 1504, 1535, 1645, 1880, 2149, 2240, 2456, 2632, 3008, 3070, 3290, 3760, 4298, 4480, 4912, 5264, 6016, 6140, 6580, 7520, 8596, 9824, 10528, 10745, 12280, 13160, 14429, 15040, 17192, 19648, 21056, 21490, 24560, 26320, 28858, 30080, 34384, 39296, 42112, 42980, 49120, 52640, 57716, 68768, 72145, 85960, 98240, 101003, 105280, 115432, 137536, 144290, 171920, 196480, 202006, 210560, 230864, 275072, 288580, 343840, 404012, 461728, 505015, 577160, 687680, 808024, 923456, 1010030, 1154320, 1375360, 1616048, 1846912, 2020060, 2308640, 3232096, 4040120, 4617280, 6464192, 8080240, 9234560, 12928384, 16160480, 32320960, 64641920]

約数ペア:

[(1, 64641920), (2, 32320960), (4, 16160480), (5, 12928384), (7, 9234560), (8, 8080240), (10, 6464192), (14, 4617280), (16, 4040120), (20, 3232096), (28, 2308640), (32, 2020060), (35, 1846912), (40, 1616048), (47, 1375360), (56, 1154320), (64, 1010030), (70, 923456), (80, 808024), (94, 687680), (112, 577160), (128, 505015), (140, 461728), (160, 404012), (188, 343840), (224, 288580), (235, 275072), (280, 230864), (307, 210560), (320, 202006), (329, 196480), (376, 171920), (448, 144290), (470, 137536), (560, 115432), (614, 105280), (640, 101003), (658, 98240), (752, 85960), (896, 72145), (940, 68768), (1120, 57716), (1228, 52640), (1316, 49120), (1504, 42980), (1535, 42112), (1645, 39296), (1880, 34384), (2149, 30080), (2240, 28858), (2456, 26320), (2632, 24560), (3008, 21490), (3070, 21056), (3290, 19648), (3760, 17192), (4298, 15040), (4480, 14429), (4912, 13160), (5264, 12280), (6016, 10745), (6140, 10528), (6580, 9824), (7520, 8596)]