20193080

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{467}}^1$

素因数の和:548

約数の個数: 64

約数和(自身を含む): 48522240

約数和(自身を除く): 28329160

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 47, 92, 94, 115, 184, 188, 230, 235, 376, 460, 467, 470, 920, 934, 940, 1081, 1868, 1880, 2162, 2335, 3736, 4324, 4670, 5405, 8648, 9340, 10741, 10810, 18680, 21482, 21620, 21949, 42964, 43240, 43898, 53705, 85928, 87796, 107410, 109745, 175592, 214820, 219490, 429640, 438980, 504827, 877960, 1009654, 2019308, 2524135, 4038616, 5048270, 10096540, 20193080]

約数ペア:

[(1, 20193080), (2, 10096540), (4, 5048270), (5, 4038616), (8, 2524135), (10, 2019308), (20, 1009654), (23, 877960), (40, 504827), (46, 438980), (47, 429640), (92, 219490), (94, 214820), (115, 175592), (184, 109745), (188, 107410), (230, 87796), (235, 85928), (376, 53705), (460, 43898), (467, 43240), (470, 42964), (920, 21949), (934, 21620), (940, 21482), (1081, 18680), (1868, 10810), (1880, 10741), (2162, 9340), (2335, 8648), (3736, 5405), (4324, 4670)]