About the Number

1990489872

1990489871 ← → 1990489873

2進数表記:1110110101001000111011100010000

漢数字表記:十九億九千四十八万九千八百七十二

素因数分解:

2 4 × 3 1 × 7 1 × 1747 1 × 3391 1

素因数の和:5156
約数の個数: 80
約数和(自身を含む): 5881782272
約数和(自身を除く): 3891292400

約数列:
[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 1747, 3391, 3494, 5241, 6782, 6988, 10173, 10482, 12229, 13564, 13976, 20346, 20964, 23737, 24458, 27128, 27952, 36687, 40692, 41928, 47474, 48916, 54256, 71211, 73374, 81384, 83856, 94948, 97832, 142422, 146748, 162768, 189896, 195664, 284844, 293496, 379792, 569688, 586992, 1139376, 5924077, 11848154, 17772231, 23696308, 35544462, 41468539, 47392616, 71088924, 82937078, 94785232, 124405617, 142177848, 165874156, 248811234, 284355696, 331748312, 497622468, 663496624, 995244936, 1990489872]

約数ペア:
[(1, 1990489872), (2, 995244936), (3, 663496624), (4, 497622468), (6, 331748312), (7, 284355696), (8, 248811234), (12, 165874156), (14, 142177848), (16, 124405617), (21, 94785232), (24, 82937078), (28, 71088924), (42, 47392616), (48, 41468539), (56, 35544462), (84, 23696308), (112, 17772231), (168, 11848154), (336, 5924077), (1747, 1139376), (3391, 586992), (3494, 569688), (5241, 379792), (6782, 293496), (6988, 284844), (10173, 195664), (10482, 189896), (12229, 162768), (13564, 146748), (13976, 142422), (20346, 97832), (20964, 94948), (23737, 83856), (24458, 81384), (27128, 73374), (27952, 71211), (36687, 54256), (40692, 48916), (41928, 47474)]

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