256894480

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{4019}}^1$

素因数の和:4096

約数の個数: 80

約数和(自身を含む): 646030080

約数和(自身を除く): 389135600

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 47, 68, 80, 85, 94, 136, 170, 188, 235, 272, 340, 376, 470, 680, 752, 799, 940, 1360, 1598, 1880, 3196, 3760, 3995, 4019, 6392, 7990, 8038, 12784, 15980, 16076, 20095, 31960, 32152, 40190, 63920, 64304, 68323, 80380, 136646, 160760, 188893, 273292, 321520, 341615, 377786, 546584, 683230, 755572, 944465, 1093168, 1366460, 1511144, 1888930, 2732920, 3022288, 3211181, 3777860, 5465840, 6422362, 7555720, 12844724, 15111440, 16055905, 25689448, 32111810, 51378896, 64223620, 128447240, 256894480]

約数ペア:

[(1, 256894480), (2, 128447240), (4, 64223620), (5, 51378896), (8, 32111810), (10, 25689448), (16, 16055905), (17, 15111440), (20, 12844724), (34, 7555720), (40, 6422362), (47, 5465840), (68, 3777860), (80, 3211181), (85, 3022288), (94, 2732920), (136, 1888930), (170, 1511144), (188, 1366460), (235, 1093168), (272, 944465), (340, 755572), (376, 683230), (470, 546584), (680, 377786), (752, 341615), (799, 321520), (940, 273292), (1360, 188893), (1598, 160760), (1880, 136646), (3196, 80380), (3760, 68323), (3995, 64304), (4019, 63920), (6392, 40190), (7990, 32152), (8038, 31960), (12784, 20095), (15980, 16076)]