691840

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:89

約数の個数: 64

約数和(自身を含む): 1762560

約数和(自身を除く): 1070720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 47, 64, 80, 92, 94, 115, 128, 160, 184, 188, 230, 235, 320, 368, 376, 460, 470, 640, 736, 752, 920, 940, 1081, 1472, 1504, 1840, 1880, 2162, 2944, 3008, 3680, 3760, 4324, 5405, 6016, 7360, 7520, 8648, 10810, 14720, 15040, 17296, 21620, 30080, 34592, 43240, 69184, 86480, 138368, 172960, 345920, 691840]

約数ペア:

[(1, 691840), (2, 345920), (4, 172960), (5, 138368), (8, 86480), (10, 69184), (16, 43240), (20, 34592), (23, 30080), (32, 21620), (40, 17296), (46, 15040), (47, 14720), (64, 10810), (80, 8648), (92, 7520), (94, 7360), (115, 6016), (128, 5405), (160, 4324), (184, 3760), (188, 3680), (230, 3008), (235, 2944), (320, 2162), (368, 1880), (376, 1840), (460, 1504), (470, 1472), (640, 1081), (736, 940), (752, 920)]