19118980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{467}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 42456960

約数和(自身を除く): 23337980

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 89, 92, 115, 178, 230, 356, 445, 460, 467, 890, 934, 1780, 1868, 2047, 2335, 4094, 4670, 8188, 9340, 10235, 10741, 20470, 21482, 40940, 41563, 42964, 53705, 83126, 107410, 166252, 207815, 214820, 415630, 831260, 955949, 1911898, 3823796, 4779745, 9559490, 19118980]

約数ペア:

[(1, 19118980), (2, 9559490), (4, 4779745), (5, 3823796), (10, 1911898), (20, 955949), (23, 831260), (46, 415630), (89, 214820), (92, 207815), (115, 166252), (178, 107410), (230, 83126), (356, 53705), (445, 42964), (460, 41563), (467, 40940), (890, 21482), (934, 20470), (1780, 10741), (1868, 10235), (2047, 9340), (2335, 8188), (4094, 4670)]