81409995

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:361

約数の個数: 64

約数和(自身を含む): 152893440

約数和(自身を除く): 71483445

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 157, 167, 207, 345, 471, 501, 621, 785, 835, 1035, 1413, 1503, 2355, 2505, 3105, 3611, 3841, 4239, 4509, 7065, 7515, 10833, 11523, 18055, 19205, 21195, 22545, 26219, 32499, 34569, 54165, 57615, 78657, 97497, 103707, 131095, 162495, 172845, 235971, 393285, 487485, 518535, 603037, 707913, 1179855, 1809111, 3015185, 3539565, 5427333, 9045555, 16281999, 27136665, 81409995]

約数ペア:

[(1, 81409995), (3, 27136665), (5, 16281999), (9, 9045555), (15, 5427333), (23, 3539565), (27, 3015185), (45, 1809111), (69, 1179855), (115, 707913), (135, 603037), (157, 518535), (167, 487485), (207, 393285), (345, 235971), (471, 172845), (501, 162495), (621, 131095), (785, 103707), (835, 97497), (1035, 78657), (1413, 57615), (1503, 54165), (2355, 34569), (2505, 32499), (3105, 26219), (3611, 22545), (3841, 21195), (4239, 19205), (4509, 18055), (7065, 11523), (7515, 10833)]