81747840

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{42577}}^1$

素因数の和:42599

約数の個数: 64

約数和(自身を含む): 260577360

約数和(自身を除く): 178829520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 42577, 85154, 127731, 170308, 212885, 255462, 340616, 425770, 510924, 638655, 681232, 851540, 1021848, 1277310, 1362464, 1703080, 2043696, 2554620, 2724928, 3406160, 4087392, 5109240, 5449856, 6812320, 8174784, 10218480, 13624640, 16349568, 20436960, 27249280, 40873920, 81747840]

約数ペア:

[(1, 81747840), (2, 40873920), (3, 27249280), (4, 20436960), (5, 16349568), (6, 13624640), (8, 10218480), (10, 8174784), (12, 6812320), (15, 5449856), (16, 5109240), (20, 4087392), (24, 3406160), (30, 2724928), (32, 2554620), (40, 2043696), (48, 1703080), (60, 1362464), (64, 1277310), (80, 1021848), (96, 851540), (120, 681232), (128, 638655), (160, 510924), (192, 425770), (240, 340616), (320, 255462), (384, 212885), (480, 170308), (640, 127731), (960, 85154), (1920, 42577)]