20895448

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{467}}^1$

素因数の和:544

約数の個数: 64

約数和(自身を含む): 48522240

約数和(自身を除く): 27626792

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 47, 56, 68, 94, 119, 136, 188, 238, 329, 376, 467, 476, 658, 799, 934, 952, 1316, 1598, 1868, 2632, 3196, 3269, 3736, 5593, 6392, 6538, 7939, 11186, 13076, 15878, 21949, 22372, 26152, 31756, 43898, 44744, 55573, 63512, 87796, 111146, 153643, 175592, 222292, 307286, 373133, 444584, 614572, 746266, 1229144, 1492532, 2611931, 2985064, 5223862, 10447724, 20895448]

約数ペア:

[(1, 20895448), (2, 10447724), (4, 5223862), (7, 2985064), (8, 2611931), (14, 1492532), (17, 1229144), (28, 746266), (34, 614572), (47, 444584), (56, 373133), (68, 307286), (94, 222292), (119, 175592), (136, 153643), (188, 111146), (238, 87796), (329, 63512), (376, 55573), (467, 44744), (476, 43898), (658, 31756), (799, 26152), (934, 22372), (952, 21949), (1316, 15878), (1598, 13076), (1868, 11186), (2632, 7939), (3196, 6538), (3269, 6392), (3736, 5593)]