15778840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:185

約数の個数: 128

約数和(自身を含む): 45619200

約数和(自身を除く): 29840360

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 47, 55, 56, 70, 77, 88, 94, 109, 110, 140, 154, 188, 218, 220, 235, 280, 308, 329, 376, 385, 436, 440, 470, 517, 545, 616, 658, 763, 770, 872, 940, 1034, 1090, 1199, 1316, 1526, 1540, 1645, 1880, 2068, 2180, 2398, 2585, 2632, 3052, 3080, 3290, 3619, 3815, 4136, 4360, 4796, 5123, 5170, 5995, 6104, 6580, 7238, 7630, 8393, 9592, 10246, 10340, 11990, 13160, 14476, 15260, 16786, 18095, 20492, 20680, 23980, 25615, 28952, 30520, 33572, 35861, 36190, 40984, 41965, 47960, 51230, 56353, 67144, 71722, 72380, 83930, 102460, 112706, 143444, 144760, 167860, 179305, 204920, 225412, 281765, 286888, 335720, 358610, 394471, 450824, 563530, 717220, 788942, 1127060, 1434440, 1577884, 1972355, 2254120, 3155768, 3944710, 7889420, 15778840]

約数ペア:

[(1, 15778840), (2, 7889420), (4, 3944710), (5, 3155768), (7, 2254120), (8, 1972355), (10, 1577884), (11, 1434440), (14, 1127060), (20, 788942), (22, 717220), (28, 563530), (35, 450824), (40, 394471), (44, 358610), (47, 335720), (55, 286888), (56, 281765), (70, 225412), (77, 204920), (88, 179305), (94, 167860), (109, 144760), (110, 143444), (140, 112706), (154, 102460), (188, 83930), (218, 72380), (220, 71722), (235, 67144), (280, 56353), (308, 51230), (329, 47960), (376, 41965), (385, 40984), (436, 36190), (440, 35861), (470, 33572), (517, 30520), (545, 28952), (616, 25615), (658, 23980), (763, 20680), (770, 20492), (872, 18095), (940, 16786), (1034, 15260), (1090, 14476), (1199, 13160), (1316, 11990), (1526, 10340), (1540, 10246), (1645, 9592), (1880, 8393), (2068, 7630), (2180, 7238), (2398, 6580), (2585, 6104), (2632, 5995), (3052, 5170), (3080, 5123), (3290, 4796), (3619, 4360), (3815, 4136)]