About the Number

131228291271

131228291270 ← → 131228291272

2進数表記:1111010001101110100001101000011000111

漢数字表記:千三百十二億二千八百二十九万千二百七十一

素因数分解:

3 1 × 7 1 × 11 1 × 41 1 × 67 1 × 206803 1

素因数の和:206932
約数の個数: 64
約数和(自身を含む): 226802774016
約数和(自身を除く): 95574482745

約数列:
[1, 3, 7, 11, 21, 33, 41, 67, 77, 123, 201, 231, 287, 451, 469, 737, 861, 1353, 1407, 2211, 2747, 3157, 5159, 8241, 9471, 15477, 19229, 30217, 57687, 90651, 206803, 211519, 620409, 634557, 1447621, 2274833, 4342863, 6824499, 8478923, 13855801, 15923831, 25436769, 41567403, 47771493, 59352461, 93268153, 96990607, 152413811, 178057383, 279804459, 290971821, 457241433, 568087841, 652877071, 1066896677, 1704263523, 1958631213, 3200690031, 3976614887, 6248966251, 11929844661, 18746898753, 43742763757, 131228291271]

約数ペア:
[(1, 131228291271), (3, 43742763757), (7, 18746898753), (11, 11929844661), (21, 6248966251), (33, 3976614887), (41, 3200690031), (67, 1958631213), (77, 1704263523), (123, 1066896677), (201, 652877071), (231, 568087841), (287, 457241433), (451, 290971821), (469, 279804459), (737, 178057383), (861, 152413811), (1353, 96990607), (1407, 93268153), (2211, 59352461), (2747, 47771493), (3157, 41567403), (5159, 25436769), (8241, 15923831), (9471, 13855801), (15477, 8478923), (19229, 6824499), (30217, 4342863), (57687, 2274833), (90651, 1447621), (206803, 634557), (211519, 620409)]

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