About the Number

31287870

31287869 ← → 31287871

2進数表記:1110111010110101000111110

漢数字表記:三千百二十八万七千八百七十

素因数分解:

2 1 × 3 4 × 5 1 × 19 2 × 107 1

素因数の和:164
約数の個数: 120
約数和(自身を含む): 89620344
約数和(自身を除く): 58332474

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 81, 90, 95, 107, 114, 135, 162, 171, 190, 214, 270, 285, 321, 342, 361, 405, 513, 535, 570, 642, 722, 810, 855, 963, 1026, 1070, 1083, 1539, 1605, 1710, 1805, 1926, 2033, 2166, 2565, 2889, 3078, 3210, 3249, 3610, 4066, 4815, 5130, 5415, 5778, 6099, 6498, 7695, 8667, 9630, 9747, 10165, 10830, 12198, 14445, 15390, 16245, 17334, 18297, 19494, 20330, 28890, 29241, 30495, 32490, 36594, 38627, 43335, 48735, 54891, 58482, 60990, 77254, 86670, 91485, 97470, 109782, 115881, 146205, 164673, 182970, 193135, 231762, 274455, 292410, 329346, 347643, 386270, 548910, 579405, 695286, 823365, 1042929, 1158810, 1646730, 1738215, 2085858, 3128787, 3476430, 5214645, 6257574, 10429290, 15643935, 31287870]

約数ペア:
[(1, 31287870), (2, 15643935), (3, 10429290), (5, 6257574), (6, 5214645), (9, 3476430), (10, 3128787), (15, 2085858), (18, 1738215), (19, 1646730), (27, 1158810), (30, 1042929), (38, 823365), (45, 695286), (54, 579405), (57, 548910), (81, 386270), (90, 347643), (95, 329346), (107, 292410), (114, 274455), (135, 231762), (162, 193135), (171, 182970), (190, 164673), (214, 146205), (270, 115881), (285, 109782), (321, 97470), (342, 91485), (361, 86670), (405, 77254), (513, 60990), (535, 58482), (570, 54891), (642, 48735), (722, 43335), (810, 38627), (855, 36594), (963, 32490), (1026, 30495), (1070, 29241), (1083, 28890), (1539, 20330), (1605, 19494), (1710, 18297), (1805, 17334), (1926, 16245), (2033, 15390), (2166, 14445), (2565, 12198), (2889, 10830), (3078, 10165), (3210, 9747), (3249, 9630), (3610, 8667), (4066, 7695), (4815, 6498), (5130, 6099), (5415, 5778)]

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