1721439872

素因数分解:

$2^7\times {\mathrm{71}}^1\times {\mathrm{307}}^1\times {\mathrm{617}}^1$

素因数の和:1009

約数の個数: 64

約数和(自身を含む): 3494715840

約数和(自身を除く): 1773275968

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 142, 284, 307, 568, 614, 617, 1136, 1228, 1234, 2272, 2456, 2468, 4544, 4912, 4936, 9088, 9824, 9872, 19648, 19744, 21797, 39296, 39488, 43594, 43807, 78976, 87188, 87614, 174376, 175228, 189419, 348752, 350456, 378838, 697504, 700912, 757676, 1395008, 1401824, 1515352, 2790016, 2803648, 3030704, 5607296, 6061408, 12122816, 13448749, 24245632, 26897498, 53794996, 107589992, 215179984, 430359968, 860719936, 1721439872]

約数ペア:

[(1, 1721439872), (2, 860719936), (4, 430359968), (8, 215179984), (16, 107589992), (32, 53794996), (64, 26897498), (71, 24245632), (128, 13448749), (142, 12122816), (284, 6061408), (307, 5607296), (568, 3030704), (614, 2803648), (617, 2790016), (1136, 1515352), (1228, 1401824), (1234, 1395008), (2272, 757676), (2456, 700912), (2468, 697504), (4544, 378838), (4912, 350456), (4936, 348752), (9088, 189419), (9824, 175228), (9872, 174376), (19648, 87614), (19744, 87188), (21797, 78976), (39296, 43807), (39488, 43594)]