About the Number

1990147488

1990147487 ← → 1990147489

2進数表記:1110110100111110011110110100000

漢数字表記:十九億九千十四万七千四百八十八

素因数分解:

2 5 × 3 1 × 7 1 × 137 1 × 21617 1

素因数の和:21774
約数の個数: 96
約数和(自身を含む): 6014300544
約数和(自身を除く): 4024153056

約数列:
[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 137, 168, 224, 274, 336, 411, 548, 672, 822, 959, 1096, 1644, 1918, 2192, 2877, 3288, 3836, 4384, 5754, 6576, 7672, 11508, 13152, 15344, 21617, 23016, 30688, 43234, 46032, 64851, 86468, 92064, 129702, 151319, 172936, 259404, 302638, 345872, 453957, 518808, 605276, 691744, 907914, 1037616, 1210552, 1815828, 2075232, 2421104, 2961529, 3631656, 4842208, 5923058, 7263312, 8884587, 11846116, 14526624, 17769174, 20730703, 23692232, 35538348, 41461406, 47384464, 62192109, 71076696, 82922812, 94768928, 124384218, 142153392, 165845624, 248768436, 284306784, 331691248, 497536872, 663382496, 995073744, 1990147488]

約数ペア:
[(1, 1990147488), (2, 995073744), (3, 663382496), (4, 497536872), (6, 331691248), (7, 284306784), (8, 248768436), (12, 165845624), (14, 142153392), (16, 124384218), (21, 94768928), (24, 82922812), (28, 71076696), (32, 62192109), (42, 47384464), (48, 41461406), (56, 35538348), (84, 23692232), (96, 20730703), (112, 17769174), (137, 14526624), (168, 11846116), (224, 8884587), (274, 7263312), (336, 5923058), (411, 4842208), (548, 3631656), (672, 2961529), (822, 2421104), (959, 2075232), (1096, 1815828), (1644, 1210552), (1918, 1037616), (2192, 907914), (2877, 691744), (3288, 605276), (3836, 518808), (4384, 453957), (5754, 345872), (6576, 302638), (7672, 259404), (11508, 172936), (13152, 151319), (15344, 129702), (21617, 92064), (23016, 86468), (30688, 64851), (43234, 46032)]

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