20512097560

素因数分解:

$2^3\times 5^1\times {\mathrm{1427}}^1\times {\mathrm{359357}}^1$

素因数の和:360795

約数の個数: 32

約数和(自身を含む): 46184690160

約数和(自身を除く): 25672592600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1427, 2854, 5708, 7135, 11416, 14270, 28540, 57080, 359357, 718714, 1437428, 1796785, 2874856, 3593570, 7187140, 14374280, 512802439, 1025604878, 2051209756, 2564012195, 4102419512, 5128024390, 10256048780, 20512097560]

約数ペア:

[(1, 20512097560), (2, 10256048780), (4, 5128024390), (5, 4102419512), (8, 2564012195), (10, 2051209756), (20, 1025604878), (40, 512802439), (1427, 14374280), (2854, 7187140), (5708, 3593570), (7135, 2874856), (11416, 1796785), (14270, 1437428), (28540, 718714), (57080, 359357)]