About the Number

123490720

123490719 ← → 123490721

2進数表記:111010111000101000110100000

漢数字表記:一億二千三百四十九万七百二十

素因数分解:

2 5 × 5 1 × 17 1 × 83 1 × 547 1

素因数の和:662
約数の個数: 96
約数和(自身を含む): 313201728
約数和(自身を除く): 189711008

約数列:
[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 83, 85, 136, 160, 166, 170, 272, 332, 340, 415, 544, 547, 664, 680, 830, 1094, 1328, 1360, 1411, 1660, 2188, 2656, 2720, 2735, 2822, 3320, 4376, 5470, 5644, 6640, 7055, 8752, 9299, 10940, 11288, 13280, 14110, 17504, 18598, 21880, 22576, 28220, 37196, 43760, 45152, 45401, 46495, 56440, 74392, 87520, 90802, 92990, 112880, 148784, 181604, 185980, 225760, 227005, 297568, 363208, 371960, 454010, 726416, 743920, 771817, 908020, 1452832, 1487840, 1543634, 1816040, 3087268, 3632080, 3859085, 6174536, 7264160, 7718170, 12349072, 15436340, 24698144, 30872680, 61745360, 123490720]

約数ペア:
[(1, 123490720), (2, 61745360), (4, 30872680), (5, 24698144), (8, 15436340), (10, 12349072), (16, 7718170), (17, 7264160), (20, 6174536), (32, 3859085), (34, 3632080), (40, 3087268), (68, 1816040), (80, 1543634), (83, 1487840), (85, 1452832), (136, 908020), (160, 771817), (166, 743920), (170, 726416), (272, 454010), (332, 371960), (340, 363208), (415, 297568), (544, 227005), (547, 225760), (664, 185980), (680, 181604), (830, 148784), (1094, 112880), (1328, 92990), (1360, 90802), (1411, 87520), (1660, 74392), (2188, 56440), (2656, 46495), (2720, 45401), (2735, 45152), (2822, 43760), (3320, 37196), (4376, 28220), (5470, 22576), (5644, 21880), (6640, 18598), (7055, 17504), (8752, 14110), (9299, 13280), (10940, 11288)]

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