138155640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{164471}}^1$

素因数の和:164492

約数の個数: 64

約数和(自身を含む): 473679360

約数和(自身を除く): 335523720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 164471, 328942, 493413, 657884, 822355, 986826, 1151297, 1315768, 1644710, 1973652, 2302594, 2467065, 3289420, 3453891, 3947304, 4605188, 4934130, 5756485, 6578840, 6907782, 9210376, 9868260, 11512970, 13815564, 17269455, 19736520, 23025940, 27631128, 34538910, 46051880, 69077820, 138155640]

約数ペア:

[(1, 138155640), (2, 69077820), (3, 46051880), (4, 34538910), (5, 27631128), (6, 23025940), (7, 19736520), (8, 17269455), (10, 13815564), (12, 11512970), (14, 9868260), (15, 9210376), (20, 6907782), (21, 6578840), (24, 5756485), (28, 4934130), (30, 4605188), (35, 3947304), (40, 3453891), (42, 3289420), (56, 2467065), (60, 2302594), (70, 1973652), (84, 1644710), (105, 1315768), (120, 1151297), (140, 986826), (168, 822355), (210, 657884), (280, 493413), (420, 328942), (840, 164471)]