About the Number

1272814864

1272814863 ← → 1272814865

2進数表記:1001011110111011001110100010000

漢数字表記:十二億七千二百八十一万四千八百六十四

素因数分解:

2 4 × 19 1 × 31 1 × 131 1 × 1031 1

素因数の和:1220
約数の個数: 80
約数和(自身を含む): 2702684160
約数和(自身を除く): 1429869296

約数列:
[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 131, 152, 248, 262, 304, 496, 524, 589, 1031, 1048, 1178, 2062, 2096, 2356, 2489, 4061, 4124, 4712, 4978, 8122, 8248, 9424, 9956, 16244, 16496, 19589, 19912, 31961, 32488, 39178, 39824, 63922, 64976, 77159, 78356, 127844, 135061, 154318, 156712, 255688, 270122, 308636, 313424, 511376, 540244, 607259, 617272, 1080488, 1214518, 1234544, 2160976, 2429036, 2566159, 4186891, 4858072, 5132318, 8373782, 9716144, 10264636, 16747564, 20529272, 33495128, 41058544, 66990256, 79550929, 159101858, 318203716, 636407432, 1272814864]

約数ペア:
[(1, 1272814864), (2, 636407432), (4, 318203716), (8, 159101858), (16, 79550929), (19, 66990256), (31, 41058544), (38, 33495128), (62, 20529272), (76, 16747564), (124, 10264636), (131, 9716144), (152, 8373782), (248, 5132318), (262, 4858072), (304, 4186891), (496, 2566159), (524, 2429036), (589, 2160976), (1031, 1234544), (1048, 1214518), (1178, 1080488), (2062, 617272), (2096, 607259), (2356, 540244), (2489, 511376), (4061, 313424), (4124, 308636), (4712, 270122), (4978, 255688), (8122, 156712), (8248, 154318), (9424, 135061), (9956, 127844), (16244, 78356), (16496, 77159), (19589, 64976), (19912, 63922), (31961, 39824), (32488, 39178)]

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