138740810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{199}}^1$

素因数の和:423

約数の個数: 64

約数和(自身を含む): 280627200

約数和(自身を除く): 141886390

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 173, 199, 310, 346, 398, 403, 806, 865, 995, 1730, 1990, 2015, 2249, 2587, 4030, 4498, 5174, 5363, 6169, 10726, 11245, 12338, 12935, 22490, 25870, 26815, 30845, 34427, 53630, 61690, 68854, 69719, 80197, 139438, 160394, 172135, 344270, 348595, 400985, 447551, 697190, 801970, 895102, 1067237, 2134474, 2237755, 4475510, 5336185, 10672370, 13874081, 27748162, 69370405, 138740810]

約数ペア:

[(1, 138740810), (2, 69370405), (5, 27748162), (10, 13874081), (13, 10672370), (26, 5336185), (31, 4475510), (62, 2237755), (65, 2134474), (130, 1067237), (155, 895102), (173, 801970), (199, 697190), (310, 447551), (346, 400985), (398, 348595), (403, 344270), (806, 172135), (865, 160394), (995, 139438), (1730, 80197), (1990, 69719), (2015, 68854), (2249, 61690), (2587, 53630), (4030, 34427), (4498, 30845), (5174, 26815), (5363, 25870), (6169, 22490), (10726, 12935), (11245, 12338)]