8387780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 18479664

約数和(自身を除く): 10091884

約数列:

[1, 2, 4, 5, 10, 20, 41, 53, 82, 106, 164, 193, 205, 212, 265, 386, 410, 530, 772, 820, 965, 1060, 1930, 2173, 3860, 4346, 7913, 8692, 10229, 10865, 15826, 20458, 21730, 31652, 39565, 40916, 43460, 51145, 79130, 102290, 158260, 204580, 419389, 838778, 1677556, 2096945, 4193890, 8387780]

約数ペア:

[(1, 8387780), (2, 4193890), (4, 2096945), (5, 1677556), (10, 838778), (20, 419389), (41, 204580), (53, 158260), (82, 102290), (106, 79130), (164, 51145), (193, 43460), (205, 40916), (212, 39565), (265, 31652), (386, 21730), (410, 20458), (530, 15826), (772, 10865), (820, 10229), (965, 8692), (1060, 7913), (1930, 4346), (2173, 3860)]