About the Number

129988208

129988207 ← → 129988209

2進数表記:111101111110111011001110000

漢数字表記:一億二千九百九十八万八千二百八

素因数分解:

2 4 × 7 1 × 29 1 × 31 1 × 1291 1

素因数の和:1366
約数の個数: 80
約数和(自身を含む): 307599360
約数和(自身を除く): 177611152

約数列:
[1, 2, 4, 7, 8, 14, 16, 28, 29, 31, 56, 58, 62, 112, 116, 124, 203, 217, 232, 248, 406, 434, 464, 496, 812, 868, 899, 1291, 1624, 1736, 1798, 2582, 3248, 3472, 3596, 5164, 6293, 7192, 9037, 10328, 12586, 14384, 18074, 20656, 25172, 36148, 37439, 40021, 50344, 72296, 74878, 80042, 100688, 144592, 149756, 160084, 262073, 280147, 299512, 320168, 524146, 560294, 599024, 640336, 1048292, 1120588, 1160609, 2096584, 2241176, 2321218, 4193168, 4482352, 4642436, 8124263, 9284872, 16248526, 18569744, 32497052, 64994104, 129988208]

約数ペア:
[(1, 129988208), (2, 64994104), (4, 32497052), (7, 18569744), (8, 16248526), (14, 9284872), (16, 8124263), (28, 4642436), (29, 4482352), (31, 4193168), (56, 2321218), (58, 2241176), (62, 2096584), (112, 1160609), (116, 1120588), (124, 1048292), (203, 640336), (217, 599024), (232, 560294), (248, 524146), (406, 320168), (434, 299512), (464, 280147), (496, 262073), (812, 160084), (868, 149756), (899, 144592), (1291, 100688), (1624, 80042), (1736, 74878), (1798, 72296), (2582, 50344), (3248, 40021), (3472, 37439), (3596, 36148), (5164, 25172), (6293, 20656), (7192, 18074), (9037, 14384), (10328, 12586)]

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