61947855

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:389

約数の個数: 64

約数和(自身を含む): 116951040

約数和(自身を除く): 55003185

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 71, 115, 135, 207, 213, 281, 345, 355, 621, 639, 843, 1035, 1065, 1405, 1633, 1917, 2529, 3105, 3195, 4215, 4899, 6463, 7587, 8165, 9585, 12645, 14697, 19389, 19951, 24495, 32315, 37935, 44091, 58167, 59853, 73485, 96945, 99755, 174501, 179559, 220455, 290835, 299265, 458873, 538677, 872505, 897795, 1376619, 2294365, 2693385, 4129857, 6883095, 12389571, 20649285, 61947855]

約数ペア:

[(1, 61947855), (3, 20649285), (5, 12389571), (9, 6883095), (15, 4129857), (23, 2693385), (27, 2294365), (45, 1376619), (69, 897795), (71, 872505), (115, 538677), (135, 458873), (207, 299265), (213, 290835), (281, 220455), (345, 179559), (355, 174501), (621, 99755), (639, 96945), (843, 73485), (1035, 59853), (1065, 58167), (1405, 44091), (1633, 37935), (1917, 32315), (2529, 24495), (3105, 19951), (3195, 19389), (4215, 14697), (4899, 12645), (6463, 9585), (7587, 8165)]