About the Number

388512080

388512079 ← → 388512081

2進数表記:10111001010000011100101010000

漢数字表記:三億八千八百五十一万二千八十

素因数分解:

2 4 × 5 1 × 11 1 × 113 1 × 3907 1

素因数の和:4044
約数の個数: 80
約数和(自身を含む): 994382784
約数和(自身を除く): 605870704

約数列:
[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 113, 176, 220, 226, 440, 452, 565, 880, 904, 1130, 1243, 1808, 2260, 2486, 3907, 4520, 4972, 6215, 7814, 9040, 9944, 12430, 15628, 19535, 19888, 24860, 31256, 39070, 42977, 49720, 62512, 78140, 85954, 99440, 156280, 171908, 214885, 312560, 343816, 429770, 441491, 687632, 859540, 882982, 1719080, 1765964, 2207455, 3438160, 3531928, 4414910, 4856401, 7063856, 8829820, 9712802, 17659640, 19425604, 24282005, 35319280, 38851208, 48564010, 77702416, 97128020, 194256040, 388512080]

約数ペア:
[(1, 388512080), (2, 194256040), (4, 97128020), (5, 77702416), (8, 48564010), (10, 38851208), (11, 35319280), (16, 24282005), (20, 19425604), (22, 17659640), (40, 9712802), (44, 8829820), (55, 7063856), (80, 4856401), (88, 4414910), (110, 3531928), (113, 3438160), (176, 2207455), (220, 1765964), (226, 1719080), (440, 882982), (452, 859540), (565, 687632), (880, 441491), (904, 429770), (1130, 343816), (1243, 312560), (1808, 214885), (2260, 171908), (2486, 156280), (3907, 99440), (4520, 85954), (4972, 78140), (6215, 62512), (7814, 49720), (9040, 42977), (9944, 39070), (12430, 31256), (15628, 24860), (19535, 19888)]

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