18440808

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{167}}^1$

素因数の和:326

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 29459352

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 107, 129, 167, 172, 214, 258, 321, 334, 344, 428, 501, 516, 642, 668, 856, 1002, 1032, 1284, 1336, 2004, 2568, 4008, 4601, 7181, 9202, 13803, 14362, 17869, 18404, 21543, 27606, 28724, 35738, 36808, 43086, 53607, 55212, 57448, 71476, 86172, 107214, 110424, 142952, 172344, 214428, 428856, 768367, 1536734, 2305101, 3073468, 4610202, 6146936, 9220404, 18440808]

約数ペア:

[(1, 18440808), (2, 9220404), (3, 6146936), (4, 4610202), (6, 3073468), (8, 2305101), (12, 1536734), (24, 768367), (43, 428856), (86, 214428), (107, 172344), (129, 142952), (167, 110424), (172, 107214), (214, 86172), (258, 71476), (321, 57448), (334, 55212), (344, 53607), (428, 43086), (501, 36808), (516, 35738), (642, 28724), (668, 27606), (856, 21543), (1002, 18404), (1032, 17869), (1284, 14362), (1336, 13803), (2004, 9202), (2568, 7181), (4008, 4601)]