20347760

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4799}}^1$

素因数の和:4865

約数の個数: 40

約数和(自身を含む): 48211200

約数和(自身を除く): 27863440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 4799, 9598, 19196, 23995, 38392, 47990, 76784, 95980, 191960, 254347, 383920, 508694, 1017388, 1271735, 2034776, 2543470, 4069552, 5086940, 10173880, 20347760]

約数ペア:

[(1, 20347760), (2, 10173880), (4, 5086940), (5, 4069552), (8, 2543470), (10, 2034776), (16, 1271735), (20, 1017388), (40, 508694), (53, 383920), (80, 254347), (106, 191960), (212, 95980), (265, 76784), (424, 47990), (530, 38392), (848, 23995), (1060, 19196), (2120, 9598), (4240, 4799)]