About the Number

128649690

128649689 ← → 128649691

2進数表記:111101010110000100111011010

漢数字表記:一億二千八百六十四万九千六百九十

素因数分解:

2 1 × 3 2 × 5 1 × 13 1 × 31 1 × 3547 1

素因数の和:3604
約数の個数: 96
約数和(自身を含む): 371943936
約数和(自身を除く): 243294246

約数列:
[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 31, 39, 45, 62, 65, 78, 90, 93, 117, 130, 155, 186, 195, 234, 279, 310, 390, 403, 465, 558, 585, 806, 930, 1170, 1209, 1395, 2015, 2418, 2790, 3547, 3627, 4030, 6045, 7094, 7254, 10641, 12090, 17735, 18135, 21282, 31923, 35470, 36270, 46111, 53205, 63846, 92222, 106410, 109957, 138333, 159615, 219914, 230555, 276666, 319230, 329871, 414999, 461110, 549785, 659742, 691665, 829998, 989613, 1099570, 1383330, 1429441, 1649355, 1979226, 2074995, 2858882, 3298710, 4149990, 4288323, 4948065, 7147205, 8576646, 9896130, 12864969, 14294410, 21441615, 25729938, 42883230, 64324845, 128649690]

約数ペア:
[(1, 128649690), (2, 64324845), (3, 42883230), (5, 25729938), (6, 21441615), (9, 14294410), (10, 12864969), (13, 9896130), (15, 8576646), (18, 7147205), (26, 4948065), (30, 4288323), (31, 4149990), (39, 3298710), (45, 2858882), (62, 2074995), (65, 1979226), (78, 1649355), (90, 1429441), (93, 1383330), (117, 1099570), (130, 989613), (155, 829998), (186, 691665), (195, 659742), (234, 549785), (279, 461110), (310, 414999), (390, 329871), (403, 319230), (465, 276666), (558, 230555), (585, 219914), (806, 159615), (930, 138333), (1170, 109957), (1209, 106410), (1395, 92222), (2015, 63846), (2418, 53205), (2790, 46111), (3547, 36270), (3627, 35470), (4030, 31923), (6045, 21282), (7094, 18135), (7254, 17735), (10641, 12090)]

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