21605280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:163

約数の個数: 192

約数和(自身を含む): 75479040

約数和(自身を除く): 53873760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 23, 24, 30, 32, 38, 40, 46, 48, 57, 60, 69, 76, 80, 92, 95, 96, 103, 114, 115, 120, 138, 152, 160, 184, 190, 206, 228, 230, 240, 276, 285, 304, 309, 345, 368, 380, 412, 437, 456, 460, 480, 515, 552, 570, 608, 618, 690, 736, 760, 824, 874, 912, 920, 1030, 1104, 1140, 1236, 1311, 1380, 1520, 1545, 1648, 1748, 1824, 1840, 1957, 2060, 2185, 2208, 2280, 2369, 2472, 2622, 2760, 3040, 3090, 3296, 3496, 3680, 3914, 4120, 4370, 4560, 4738, 4944, 5244, 5520, 5871, 6180, 6555, 6992, 7107, 7828, 8240, 8740, 9120, 9476, 9785, 9888, 10488, 11040, 11742, 11845, 12360, 13110, 13984, 14214, 15656, 16480, 17480, 18952, 19570, 20976, 23484, 23690, 24720, 26220, 28428, 29355, 31312, 34960, 35535, 37904, 39140, 41952, 45011, 46968, 47380, 49440, 52440, 56856, 58710, 62624, 69920, 71070, 75808, 78280, 90022, 93936, 94760, 104880, 113712, 117420, 135033, 142140, 156560, 180044, 187872, 189520, 209760, 225055, 227424, 234840, 270066, 284280, 313120, 360088, 379040, 450110, 469680, 540132, 568560, 675165, 720176, 900220, 939360, 1080264, 1137120, 1350330, 1440352, 1800440, 2160528, 2700660, 3600880, 4321056, 5401320, 7201760, 10802640, 21605280]

約数ペア:

[(1, 21605280), (2, 10802640), (3, 7201760), (4, 5401320), (5, 4321056), (6, 3600880), (8, 2700660), (10, 2160528), (12, 1800440), (15, 1440352), (16, 1350330), (19, 1137120), (20, 1080264), (23, 939360), (24, 900220), (30, 720176), (32, 675165), (38, 568560), (40, 540132), (46, 469680), (48, 450110), (57, 379040), (60, 360088), (69, 313120), (76, 284280), (80, 270066), (92, 234840), (95, 227424), (96, 225055), (103, 209760), (114, 189520), (115, 187872), (120, 180044), (138, 156560), (152, 142140), (160, 135033), (184, 117420), (190, 113712), (206, 104880), (228, 94760), (230, 93936), (240, 90022), (276, 78280), (285, 75808), (304, 71070), (309, 69920), (345, 62624), (368, 58710), (380, 56856), (412, 52440), (437, 49440), (456, 47380), (460, 46968), (480, 45011), (515, 41952), (552, 39140), (570, 37904), (608, 35535), (618, 34960), (690, 31312), (736, 29355), (760, 28428), (824, 26220), (874, 24720), (912, 23690), (920, 23484), (1030, 20976), (1104, 19570), (1140, 18952), (1236, 17480), (1311, 16480), (1380, 15656), (1520, 14214), (1545, 13984), (1648, 13110), (1748, 12360), (1824, 11845), (1840, 11742), (1957, 11040), (2060, 10488), (2185, 9888), (2208, 9785), (2280, 9476), (2369, 9120), (2472, 8740), (2622, 8240), (2760, 7828), (3040, 7107), (3090, 6992), (3296, 6555), (3496, 6180), (3680, 5871), (3914, 5520), (4120, 5244), (4370, 4944), (4560, 4738)]