721280

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{23}}^1$

素因数の和:56

約数の個数: 96

約数和(自身を含む): 2093040

約数和(自身を除く): 1371760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 49, 56, 64, 70, 80, 92, 98, 112, 115, 128, 140, 160, 161, 184, 196, 224, 230, 245, 280, 320, 322, 368, 392, 448, 460, 490, 560, 640, 644, 736, 784, 805, 896, 920, 980, 1120, 1127, 1288, 1472, 1568, 1610, 1840, 1960, 2240, 2254, 2576, 2944, 3136, 3220, 3680, 3920, 4480, 4508, 5152, 5635, 6272, 6440, 7360, 7840, 9016, 10304, 11270, 12880, 14720, 15680, 18032, 20608, 22540, 25760, 31360, 36064, 45080, 51520, 72128, 90160, 103040, 144256, 180320, 360640, 721280]

約数ペア:

[(1, 721280), (2, 360640), (4, 180320), (5, 144256), (7, 103040), (8, 90160), (10, 72128), (14, 51520), (16, 45080), (20, 36064), (23, 31360), (28, 25760), (32, 22540), (35, 20608), (40, 18032), (46, 15680), (49, 14720), (56, 12880), (64, 11270), (70, 10304), (80, 9016), (92, 7840), (98, 7360), (112, 6440), (115, 6272), (128, 5635), (140, 5152), (160, 4508), (161, 4480), (184, 3920), (196, 3680), (224, 3220), (230, 3136), (245, 2944), (280, 2576), (320, 2254), (322, 2240), (368, 1960), (392, 1840), (448, 1610), (460, 1568), (490, 1472), (560, 1288), (640, 1127), (644, 1120), (736, 980), (784, 920), (805, 896)]