1605520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:128

約数の個数: 80

約数和(自身を含む): 4428288

約数和(自身を除く): 2822768

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 56, 61, 70, 80, 94, 112, 122, 140, 188, 235, 244, 280, 305, 329, 376, 427, 470, 488, 560, 610, 658, 752, 854, 940, 976, 1220, 1316, 1645, 1708, 1880, 2135, 2440, 2632, 2867, 3290, 3416, 3760, 4270, 4880, 5264, 5734, 6580, 6832, 8540, 11468, 13160, 14335, 17080, 20069, 22936, 26320, 28670, 34160, 40138, 45872, 57340, 80276, 100345, 114680, 160552, 200690, 229360, 321104, 401380, 802760, 1605520]

約数ペア:

[(1, 1605520), (2, 802760), (4, 401380), (5, 321104), (7, 229360), (8, 200690), (10, 160552), (14, 114680), (16, 100345), (20, 80276), (28, 57340), (35, 45872), (40, 40138), (47, 34160), (56, 28670), (61, 26320), (70, 22936), (80, 20069), (94, 17080), (112, 14335), (122, 13160), (140, 11468), (188, 8540), (235, 6832), (244, 6580), (280, 5734), (305, 5264), (329, 4880), (376, 4270), (427, 3760), (470, 3416), (488, 3290), (560, 2867), (610, 2632), (658, 2440), (752, 2135), (854, 1880), (940, 1708), (976, 1645), (1220, 1316)]