About the Number

31398080

31398079 ← → 31398081

2進数表記:1110111110001100011000000

漢数字表記:三千百三十九万八千八十

素因数分解:

2 6 × 5 1 × 7 1 × 107 1 × 131 1

素因数の和:262
約数の個数: 112
約数和(自身を含む): 86904576
約数和(自身を除く): 55506496

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 107, 112, 131, 140, 160, 214, 224, 262, 280, 320, 428, 448, 524, 535, 560, 655, 749, 856, 917, 1048, 1070, 1120, 1310, 1498, 1712, 1834, 2096, 2140, 2240, 2620, 2996, 3424, 3668, 3745, 4192, 4280, 4585, 5240, 5992, 6848, 7336, 7490, 8384, 8560, 9170, 10480, 11984, 14017, 14672, 14980, 17120, 18340, 20960, 23968, 28034, 29344, 29960, 34240, 36680, 41920, 47936, 56068, 58688, 59920, 70085, 73360, 98119, 112136, 119840, 140170, 146720, 196238, 224272, 239680, 280340, 293440, 392476, 448544, 490595, 560680, 784952, 897088, 981190, 1121360, 1569904, 1962380, 2242720, 3139808, 3924760, 4485440, 6279616, 7849520, 15699040, 31398080]

約数ペア:
[(1, 31398080), (2, 15699040), (4, 7849520), (5, 6279616), (7, 4485440), (8, 3924760), (10, 3139808), (14, 2242720), (16, 1962380), (20, 1569904), (28, 1121360), (32, 981190), (35, 897088), (40, 784952), (56, 560680), (64, 490595), (70, 448544), (80, 392476), (107, 293440), (112, 280340), (131, 239680), (140, 224272), (160, 196238), (214, 146720), (224, 140170), (262, 119840), (280, 112136), (320, 98119), (428, 73360), (448, 70085), (524, 59920), (535, 58688), (560, 56068), (655, 47936), (749, 41920), (856, 36680), (917, 34240), (1048, 29960), (1070, 29344), (1120, 28034), (1310, 23968), (1498, 20960), (1712, 18340), (1834, 17120), (2096, 14980), (2140, 14672), (2240, 14017), (2620, 11984), (2996, 10480), (3424, 9170), (3668, 8560), (3745, 8384), (4192, 7490), (4280, 7336), (4585, 6848), (5240, 5992)]

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