About the Number

27991230

27991229 ← → 27991231

2進数表記:1101010110001110010111110

漢数字表記:二千七百九十九万千二百三十

素因数分解:

2 1 × 3 1 × 5 1 × 23 1 × 113 1 × 359 1

素因数の和:505
約数の個数: 64
約数和(自身を含む): 70917120
約数和(自身を除く): 42925890

約数列:
[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 113, 115, 138, 226, 230, 339, 345, 359, 565, 678, 690, 718, 1077, 1130, 1695, 1795, 2154, 2599, 3390, 3590, 5198, 5385, 7797, 8257, 10770, 12995, 15594, 16514, 24771, 25990, 38985, 40567, 41285, 49542, 77970, 81134, 82570, 121701, 123855, 202835, 243402, 247710, 405670, 608505, 933041, 1217010, 1866082, 2799123, 4665205, 5598246, 9330410, 13995615, 27991230]

約数ペア:
[(1, 27991230), (2, 13995615), (3, 9330410), (5, 5598246), (6, 4665205), (10, 2799123), (15, 1866082), (23, 1217010), (30, 933041), (46, 608505), (69, 405670), (113, 247710), (115, 243402), (138, 202835), (226, 123855), (230, 121701), (339, 82570), (345, 81134), (359, 77970), (565, 49542), (678, 41285), (690, 40567), (718, 38985), (1077, 25990), (1130, 24771), (1695, 16514), (1795, 15594), (2154, 12995), (2599, 10770), (3390, 8257), (3590, 7797), (5198, 5385)]

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