About the Number

12881430

12881429 ← → 12881431

2進数表記:110001001000111000010110

漢数字表記:千二百八十八万千四百三十

素因数分解:

2 1 × 3 7 × 5 1 × 19 1 × 31 1

素因数の和:78
約数の個数: 128
約数和(自身を含む): 37785600
約数和(自身を除く): 24904170

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 31, 38, 45, 54, 57, 62, 81, 90, 93, 95, 114, 135, 155, 162, 171, 186, 190, 243, 270, 279, 285, 310, 342, 405, 465, 486, 513, 558, 570, 589, 729, 810, 837, 855, 930, 1026, 1178, 1215, 1395, 1458, 1539, 1674, 1710, 1767, 2187, 2430, 2511, 2565, 2790, 2945, 3078, 3534, 3645, 4185, 4374, 4617, 5022, 5130, 5301, 5890, 7290, 7533, 7695, 8370, 8835, 9234, 10602, 10935, 12555, 13851, 15066, 15390, 15903, 17670, 21870, 22599, 23085, 25110, 26505, 27702, 31806, 37665, 41553, 45198, 46170, 47709, 53010, 67797, 69255, 75330, 79515, 83106, 95418, 112995, 135594, 138510, 143127, 159030, 207765, 225990, 238545, 286254, 338985, 415530, 429381, 477090, 677970, 715635, 858762, 1288143, 1431270, 2146905, 2576286, 4293810, 6440715, 12881430]

約数ペア:
[(1, 12881430), (2, 6440715), (3, 4293810), (5, 2576286), (6, 2146905), (9, 1431270), (10, 1288143), (15, 858762), (18, 715635), (19, 677970), (27, 477090), (30, 429381), (31, 415530), (38, 338985), (45, 286254), (54, 238545), (57, 225990), (62, 207765), (81, 159030), (90, 143127), (93, 138510), (95, 135594), (114, 112995), (135, 95418), (155, 83106), (162, 79515), (171, 75330), (186, 69255), (190, 67797), (243, 53010), (270, 47709), (279, 46170), (285, 45198), (310, 41553), (342, 37665), (405, 31806), (465, 27702), (486, 26505), (513, 25110), (558, 23085), (570, 22599), (589, 21870), (729, 17670), (810, 15903), (837, 15390), (855, 15066), (930, 13851), (1026, 12555), (1178, 10935), (1215, 10602), (1395, 9234), (1458, 8835), (1539, 8370), (1674, 7695), (1710, 7533), (1767, 7290), (2187, 5890), (2430, 5301), (2511, 5130), (2565, 5022), (2790, 4617), (2945, 4374), (3078, 4185), (3534, 3645)]

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