20452275

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{5347}}^1$

素因数の和:5380

約数の個数: 36

約数和(自身を含む): 38794392

約数和(自身を除く): 18342117

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825, 5347, 16041, 26735, 48123, 80205, 90899, 133675, 240615, 272697, 401025, 454495, 818091, 1203075, 1363485, 2272475, 4090455, 6817425, 20452275]

約数ペア:

[(1, 20452275), (3, 6817425), (5, 4090455), (9, 2272475), (15, 1363485), (17, 1203075), (25, 818091), (45, 454495), (51, 401025), (75, 272697), (85, 240615), (153, 133675), (225, 90899), (255, 80205), (425, 48123), (765, 26735), (1275, 16041), (3825, 5347)]