About the Number

129748521

129748520 ← → 129748522

2進数表記:111101110111100111000101001

漢数字表記:一億二千九百七十四万八千五百二十一

素因数分解:

3 1 × 7 2 × 73 1 × 107 1 × 113 1

素因数の和:310
約数の個数: 48
約数和(自身を含む): 207728064
約数和(自身を除く): 77979543

約数列:
[1, 3, 7, 21, 49, 73, 107, 113, 147, 219, 321, 339, 511, 749, 791, 1533, 2247, 2373, 3577, 5243, 5537, 7811, 8249, 10731, 12091, 15729, 16611, 23433, 24747, 36273, 54677, 57743, 84637, 164031, 173229, 253911, 382739, 404201, 592459, 882643, 1148217, 1212603, 1777377, 2647929, 6178501, 18535503, 43249507, 129748521]

約数ペア:
[(1, 129748521), (3, 43249507), (7, 18535503), (21, 6178501), (49, 2647929), (73, 1777377), (107, 1212603), (113, 1148217), (147, 882643), (219, 592459), (321, 404201), (339, 382739), (511, 253911), (749, 173229), (791, 164031), (1533, 84637), (2247, 57743), (2373, 54677), (3577, 36273), (5243, 24747), (5537, 23433), (7811, 16611), (8249, 15729), (10731, 12091)]

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