About the Number

1389906720

1389906719 ← → 1389906721

2進数表記:1010010110110000100101100100000

漢数字表記:十三億八千九百九十万六千七百二十

素因数分解:

2 5 × 3 2 × 5 1 × 103 1 × 9371 1

素因数の和:9495
約数の個数: 144
約数和(自身を含む): 4789616832
約数和(自身を除く): 3399710112

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 103, 120, 144, 160, 180, 206, 240, 288, 309, 360, 412, 480, 515, 618, 720, 824, 927, 1030, 1236, 1440, 1545, 1648, 1854, 2060, 2472, 3090, 3296, 3708, 4120, 4635, 4944, 6180, 7416, 8240, 9270, 9371, 9888, 12360, 14832, 16480, 18540, 18742, 24720, 28113, 29664, 37080, 37484, 46855, 49440, 56226, 74160, 74968, 84339, 93710, 112452, 140565, 148320, 149936, 168678, 187420, 224904, 281130, 299872, 337356, 374840, 421695, 449808, 562260, 674712, 749680, 843390, 899616, 965213, 1124520, 1349424, 1499360, 1686780, 1930426, 2249040, 2698848, 2895639, 3373560, 3860852, 4498080, 4826065, 5791278, 6747120, 7721704, 8686917, 9652130, 11582556, 13494240, 14478195, 15443408, 17373834, 19304260, 23165112, 28956390, 30886816, 34747668, 38608520, 43434585, 46330224, 57912780, 69495336, 77217040, 86869170, 92660448, 115825560, 138990672, 154434080, 173738340, 231651120, 277981344, 347476680, 463302240, 694953360, 1389906720]

約数ペア:
[(1, 1389906720), (2, 694953360), (3, 463302240), (4, 347476680), (5, 277981344), (6, 231651120), (8, 173738340), (9, 154434080), (10, 138990672), (12, 115825560), (15, 92660448), (16, 86869170), (18, 77217040), (20, 69495336), (24, 57912780), (30, 46330224), (32, 43434585), (36, 38608520), (40, 34747668), (45, 30886816), (48, 28956390), (60, 23165112), (72, 19304260), (80, 17373834), (90, 15443408), (96, 14478195), (103, 13494240), (120, 11582556), (144, 9652130), (160, 8686917), (180, 7721704), (206, 6747120), (240, 5791278), (288, 4826065), (309, 4498080), (360, 3860852), (412, 3373560), (480, 2895639), (515, 2698848), (618, 2249040), (720, 1930426), (824, 1686780), (927, 1499360), (1030, 1349424), (1236, 1124520), (1440, 965213), (1545, 899616), (1648, 843390), (1854, 749680), (2060, 674712), (2472, 562260), (3090, 449808), (3296, 421695), (3708, 374840), (4120, 337356), (4635, 299872), (4944, 281130), (6180, 224904), (7416, 187420), (8240, 168678), (9270, 149936), (9371, 148320), (9888, 140565), (12360, 112452), (14832, 93710), (16480, 84339), (18540, 74968), (18742, 74160), (24720, 56226), (28113, 49440), (29664, 46855), (37080, 37484)]

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