20055945

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2099}}^1$

素因数の和:2134

約数の個数: 48

約数和(自身を含む): 40219200

約数和(自身を除く): 20163255

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 49, 65, 91, 105, 147, 195, 245, 273, 455, 637, 735, 1365, 1911, 2099, 3185, 6297, 9555, 10495, 14693, 27287, 31485, 44079, 73465, 81861, 102851, 136435, 191009, 220395, 308553, 409305, 514255, 573027, 955045, 1337063, 1542765, 2865135, 4011189, 6685315, 20055945]

約数ペア:

[(1, 20055945), (3, 6685315), (5, 4011189), (7, 2865135), (13, 1542765), (15, 1337063), (21, 955045), (35, 573027), (39, 514255), (49, 409305), (65, 308553), (91, 220395), (105, 191009), (147, 136435), (195, 102851), (245, 81861), (273, 73465), (455, 44079), (637, 31485), (735, 27287), (1365, 14693), (1911, 10495), (2099, 9555), (3185, 6297)]