20829700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^2\times {\mathrm{577}}^1$

素因数の和:629

約数の個数: 54

約数和(自身を含む): 47787306

約数和(自身を除く): 26957606

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 361, 380, 475, 577, 722, 950, 1154, 1444, 1805, 1900, 2308, 2885, 3610, 5770, 7220, 9025, 10963, 11540, 14425, 18050, 21926, 28850, 36100, 43852, 54815, 57700, 109630, 208297, 219260, 274075, 416594, 548150, 833188, 1041485, 1096300, 2082970, 4165940, 5207425, 10414850, 20829700]

約数ペア:

[(1, 20829700), (2, 10414850), (4, 5207425), (5, 4165940), (10, 2082970), (19, 1096300), (20, 1041485), (25, 833188), (38, 548150), (50, 416594), (76, 274075), (95, 219260), (100, 208297), (190, 109630), (361, 57700), (380, 54815), (475, 43852), (577, 36100), (722, 28850), (950, 21926), (1154, 18050), (1444, 14425), (1805, 11540), (1900, 10963), (2308, 9025), (2885, 7220), (3610, 5770)]