About the Number

201221216

201221215 ← → 201221217

2進数表記:1011111111100110010001100000

漢数字表記:二億百二十二万千二百十六

素因数分解:

2 5 × 7 1 × 79 1 × 83 1 × 137 1

素因数の和:316
約数の個数: 96
約数和(自身を含む): 467389440
約数和(自身を除く): 266168224

約数列:
[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 79, 83, 112, 137, 158, 166, 224, 274, 316, 332, 548, 553, 581, 632, 664, 959, 1096, 1106, 1162, 1264, 1328, 1918, 2192, 2212, 2324, 2528, 2656, 3836, 4384, 4424, 4648, 6557, 7672, 8848, 9296, 10823, 11371, 13114, 15344, 17696, 18592, 21646, 22742, 26228, 30688, 43292, 45484, 45899, 52456, 75761, 79597, 86584, 90968, 91798, 104912, 151522, 159194, 173168, 181936, 183596, 209824, 303044, 318388, 346336, 363872, 367192, 606088, 636776, 734384, 898309, 1212176, 1273552, 1468768, 1796618, 2424352, 2547104, 3593236, 6288163, 7186472, 12576326, 14372944, 25152652, 28745888, 50305304, 100610608, 201221216]

約数ペア:
[(1, 201221216), (2, 100610608), (4, 50305304), (7, 28745888), (8, 25152652), (14, 14372944), (16, 12576326), (28, 7186472), (32, 6288163), (56, 3593236), (79, 2547104), (83, 2424352), (112, 1796618), (137, 1468768), (158, 1273552), (166, 1212176), (224, 898309), (274, 734384), (316, 636776), (332, 606088), (548, 367192), (553, 363872), (581, 346336), (632, 318388), (664, 303044), (959, 209824), (1096, 183596), (1106, 181936), (1162, 173168), (1264, 159194), (1328, 151522), (1918, 104912), (2192, 91798), (2212, 90968), (2324, 86584), (2528, 79597), (2656, 75761), (3836, 52456), (4384, 45899), (4424, 45484), (4648, 43292), (6557, 30688), (7672, 26228), (8848, 22742), (9296, 21646), (10823, 18592), (11371, 17696), (13114, 15344)]

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