20380600

素因数分解:

$2^3\times 5^2\times {\mathrm{181}}^1\times {\mathrm{563}}^1$

素因数の和:760

約数の個数: 48

約数和(自身を含む): 47731320

約数和(自身を除く): 27350720

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 181, 200, 362, 563, 724, 905, 1126, 1448, 1810, 2252, 2815, 3620, 4504, 4525, 5630, 7240, 9050, 11260, 14075, 18100, 22520, 28150, 36200, 56300, 101903, 112600, 203806, 407612, 509515, 815224, 1019030, 2038060, 2547575, 4076120, 5095150, 10190300, 20380600]

約数ペア:

[(1, 20380600), (2, 10190300), (4, 5095150), (5, 4076120), (8, 2547575), (10, 2038060), (20, 1019030), (25, 815224), (40, 509515), (50, 407612), (100, 203806), (181, 112600), (200, 101903), (362, 56300), (563, 36200), (724, 28150), (905, 22520), (1126, 18100), (1448, 14075), (1810, 11260), (2252, 9050), (2815, 7240), (3620, 5630), (4504, 4525)]