19980459848

素因数分解:

$2^3\times {\mathrm{277}}^1\times {\mathrm{2239}}^1\times {\mathrm{4027}}^1$

素因数の和:6549

約数の個数: 32

約数和(自身を含む): 37624742400

約数和(自身を除く): 17644282552

約数列:

[1, 2, 4, 8, 277, 554, 1108, 2216, 2239, 4027, 4478, 8054, 8956, 16108, 17912, 32216, 620203, 1115479, 1240406, 2230958, 2480812, 4461916, 4961624, 8923832, 9016453, 18032906, 36065812, 72131624, 2497557481, 4995114962, 9990229924, 19980459848]

約数ペア:

[(1, 19980459848), (2, 9990229924), (4, 4995114962), (8, 2497557481), (277, 72131624), (554, 36065812), (1108, 18032906), (2216, 9016453), (2239, 8923832), (4027, 4961624), (4478, 4461916), (8054, 2480812), (8956, 2230958), (16108, 1240406), (17912, 1115479), (32216, 620203)]