221567420

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1\times {\mathrm{1823}}^1$

素因数の和:1994

約数の個数: 48

約数和(自身を含む): 478033920

約数和(自身を除く): 256466500

約数列:

[1, 2, 4, 5, 10, 20, 59, 103, 118, 206, 236, 295, 412, 515, 590, 1030, 1180, 1823, 2060, 3646, 6077, 7292, 9115, 12154, 18230, 24308, 30385, 36460, 60770, 107557, 121540, 187769, 215114, 375538, 430228, 537785, 751076, 938845, 1075570, 1877690, 2151140, 3755380, 11078371, 22156742, 44313484, 55391855, 110783710, 221567420]

約数ペア:

[(1, 221567420), (2, 110783710), (4, 55391855), (5, 44313484), (10, 22156742), (20, 11078371), (59, 3755380), (103, 2151140), (118, 1877690), (206, 1075570), (236, 938845), (295, 751076), (412, 537785), (515, 430228), (590, 375538), (1030, 215114), (1180, 187769), (1823, 121540), (2060, 107557), (3646, 60770), (6077, 36460), (7292, 30385), (9115, 24308), (12154, 18230)]