15681960

素因数分解:

$2^3\times 3^2\times 5^1\times 7^3\times {\mathrm{127}}^1$

素因数の和:165

約数の個数: 192

約数和(自身を含む): 59904000

約数和(自身を除く): 44222040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 49, 56, 60, 63, 70, 72, 84, 90, 98, 105, 120, 126, 127, 140, 147, 168, 180, 196, 210, 245, 252, 254, 280, 294, 315, 343, 360, 381, 392, 420, 441, 490, 504, 508, 588, 630, 635, 686, 735, 762, 840, 882, 889, 980, 1016, 1029, 1143, 1176, 1260, 1270, 1372, 1470, 1524, 1715, 1764, 1778, 1905, 1960, 2058, 2205, 2286, 2520, 2540, 2667, 2744, 2940, 3048, 3087, 3430, 3528, 3556, 3810, 4116, 4410, 4445, 4572, 5080, 5145, 5334, 5715, 5880, 6174, 6223, 6860, 7112, 7620, 8001, 8232, 8820, 8890, 9144, 10290, 10668, 11430, 12348, 12446, 13335, 13720, 15240, 15435, 16002, 17640, 17780, 18669, 20580, 21336, 22860, 24696, 24892, 26670, 30870, 31115, 32004, 35560, 37338, 40005, 41160, 43561, 45720, 49784, 53340, 56007, 61740, 62230, 64008, 74676, 80010, 87122, 93345, 106680, 112014, 123480, 124460, 130683, 149352, 160020, 174244, 186690, 217805, 224028, 248920, 261366, 280035, 320040, 348488, 373380, 392049, 435610, 448056, 522732, 560070, 653415, 746760, 784098, 871220, 1045464, 1120140, 1306830, 1568196, 1742440, 1960245, 2240280, 2613660, 3136392, 3920490, 5227320, 7840980, 15681960]

約数ペア:

[(1, 15681960), (2, 7840980), (3, 5227320), (4, 3920490), (5, 3136392), (6, 2613660), (7, 2240280), (8, 1960245), (9, 1742440), (10, 1568196), (12, 1306830), (14, 1120140), (15, 1045464), (18, 871220), (20, 784098), (21, 746760), (24, 653415), (28, 560070), (30, 522732), (35, 448056), (36, 435610), (40, 392049), (42, 373380), (45, 348488), (49, 320040), (56, 280035), (60, 261366), (63, 248920), (70, 224028), (72, 217805), (84, 186690), (90, 174244), (98, 160020), (105, 149352), (120, 130683), (126, 124460), (127, 123480), (140, 112014), (147, 106680), (168, 93345), (180, 87122), (196, 80010), (210, 74676), (245, 64008), (252, 62230), (254, 61740), (280, 56007), (294, 53340), (315, 49784), (343, 45720), (360, 43561), (381, 41160), (392, 40005), (420, 37338), (441, 35560), (490, 32004), (504, 31115), (508, 30870), (588, 26670), (630, 24892), (635, 24696), (686, 22860), (735, 21336), (762, 20580), (840, 18669), (882, 17780), (889, 17640), (980, 16002), (1016, 15435), (1029, 15240), (1143, 13720), (1176, 13335), (1260, 12446), (1270, 12348), (1372, 11430), (1470, 10668), (1524, 10290), (1715, 9144), (1764, 8890), (1778, 8820), (1905, 8232), (1960, 8001), (2058, 7620), (2205, 7112), (2286, 6860), (2520, 6223), (2540, 6174), (2667, 5880), (2744, 5715), (2940, 5334), (3048, 5145), (3087, 5080), (3430, 4572), (3528, 4445), (3556, 4410), (3810, 4116)]