81700278

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{503}}^1$

素因数の和:649

約数の個数: 64

約数和(自身を含む): 188116992

約数和(自身を除く): 106416714

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 107, 138, 214, 253, 321, 503, 506, 642, 759, 1006, 1177, 1509, 1518, 2354, 2461, 3018, 3531, 4922, 5533, 7062, 7383, 11066, 11569, 14766, 16599, 23138, 27071, 33198, 34707, 53821, 54142, 69414, 81213, 107642, 127259, 161463, 162426, 254518, 322926, 381777, 592031, 763554, 1184062, 1237883, 1776093, 2475766, 3552186, 3713649, 7427298, 13616713, 27233426, 40850139, 81700278]

約数ペア:

[(1, 81700278), (2, 40850139), (3, 27233426), (6, 13616713), (11, 7427298), (22, 3713649), (23, 3552186), (33, 2475766), (46, 1776093), (66, 1237883), (69, 1184062), (107, 763554), (138, 592031), (214, 381777), (253, 322926), (321, 254518), (503, 162426), (506, 161463), (642, 127259), (759, 107642), (1006, 81213), (1177, 69414), (1509, 54142), (1518, 53821), (2354, 34707), (2461, 33198), (3018, 27071), (3531, 23138), (4922, 16599), (5533, 14766), (7062, 11569), (7383, 11066)]