20929360

素因数分解:

$2^4\times 5^1\times {\mathrm{431}}^1\times {\mathrm{607}}^1$

素因数の和:1051

約数の個数: 40

約数和(自身を含む): 48854016

約数和(自身を除く): 27924656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 431, 607, 862, 1214, 1724, 2155, 2428, 3035, 3448, 4310, 4856, 6070, 6896, 8620, 9712, 12140, 17240, 24280, 34480, 48560, 261617, 523234, 1046468, 1308085, 2092936, 2616170, 4185872, 5232340, 10464680, 20929360]

約数ペア:

[(1, 20929360), (2, 10464680), (4, 5232340), (5, 4185872), (8, 2616170), (10, 2092936), (16, 1308085), (20, 1046468), (40, 523234), (80, 261617), (431, 48560), (607, 34480), (862, 24280), (1214, 17240), (1724, 12140), (2155, 9712), (2428, 8620), (3035, 6896), (3448, 6070), (4310, 4856)]