221861120

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:300

約数の個数: 144

約数和(自身を含む): 583766400

約数和(自身を除く): 361905280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 67, 80, 104, 128, 130, 134, 160, 199, 208, 256, 260, 268, 320, 335, 398, 416, 520, 536, 640, 670, 796, 832, 871, 995, 1040, 1072, 1280, 1340, 1592, 1664, 1742, 1990, 2080, 2144, 2587, 2680, 3184, 3328, 3484, 3980, 4160, 4288, 4355, 5174, 5360, 6368, 6968, 7960, 8320, 8576, 8710, 10348, 10720, 12736, 12935, 13333, 13936, 15920, 16640, 17152, 17420, 20696, 21440, 25472, 25870, 26666, 27872, 31840, 34840, 41392, 42880, 50944, 51740, 53332, 55744, 63680, 66665, 69680, 82784, 85760, 103480, 106664, 111488, 127360, 133330, 139360, 165568, 173329, 206960, 213328, 222976, 254720, 266660, 278720, 331136, 346658, 413920, 426656, 533320, 557440, 662272, 693316, 827840, 853312, 866645, 1066640, 1114880, 1386632, 1655680, 1706624, 1733290, 2133280, 2773264, 3311360, 3413248, 3466580, 4266560, 5546528, 6933160, 8533120, 11093056, 13866320, 17066240, 22186112, 27732640, 44372224, 55465280, 110930560, 221861120]

約数ペア:

[(1, 221861120), (2, 110930560), (4, 55465280), (5, 44372224), (8, 27732640), (10, 22186112), (13, 17066240), (16, 13866320), (20, 11093056), (26, 8533120), (32, 6933160), (40, 5546528), (52, 4266560), (64, 3466580), (65, 3413248), (67, 3311360), (80, 2773264), (104, 2133280), (128, 1733290), (130, 1706624), (134, 1655680), (160, 1386632), (199, 1114880), (208, 1066640), (256, 866645), (260, 853312), (268, 827840), (320, 693316), (335, 662272), (398, 557440), (416, 533320), (520, 426656), (536, 413920), (640, 346658), (670, 331136), (796, 278720), (832, 266660), (871, 254720), (995, 222976), (1040, 213328), (1072, 206960), (1280, 173329), (1340, 165568), (1592, 139360), (1664, 133330), (1742, 127360), (1990, 111488), (2080, 106664), (2144, 103480), (2587, 85760), (2680, 82784), (3184, 69680), (3328, 66665), (3484, 63680), (3980, 55744), (4160, 53332), (4288, 51740), (4355, 50944), (5174, 42880), (5360, 41392), (6368, 34840), (6968, 31840), (7960, 27872), (8320, 26666), (8576, 25870), (8710, 25472), (10348, 21440), (10720, 20696), (12736, 17420), (12935, 17152), (13333, 16640), (13936, 15920)]