64564725

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{641}}^1$

素因数の和:750

約数の個数: 48

約数和(自身を含む): 114635520

約数和(自身を除く): 50070795

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 79, 85, 237, 255, 395, 425, 641, 1185, 1275, 1343, 1923, 1975, 3205, 4029, 5925, 6715, 9615, 10897, 16025, 20145, 32691, 33575, 48075, 50639, 54485, 100725, 151917, 163455, 253195, 272425, 759585, 817275, 860863, 1265975, 2582589, 3797925, 4304315, 12912945, 21521575, 64564725]

約数ペア:

[(1, 64564725), (3, 21521575), (5, 12912945), (15, 4304315), (17, 3797925), (25, 2582589), (51, 1265975), (75, 860863), (79, 817275), (85, 759585), (237, 272425), (255, 253195), (395, 163455), (425, 151917), (641, 100725), (1185, 54485), (1275, 50639), (1343, 48075), (1923, 33575), (1975, 32691), (3205, 20145), (4029, 16025), (5925, 10897), (6715, 9615)]