19709620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6121}}^1$

素因数の和:6160

約数の個数: 48

約数和(自身を含む): 49367808

約数和(自身を除く): 29658188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 6121, 12242, 24484, 30605, 42847, 61210, 85694, 122420, 140783, 171388, 214235, 281566, 428470, 563132, 703915, 856940, 985481, 1407830, 1970962, 2815660, 3941924, 4927405, 9854810, 19709620]

約数ペア:

[(1, 19709620), (2, 9854810), (4, 4927405), (5, 3941924), (7, 2815660), (10, 1970962), (14, 1407830), (20, 985481), (23, 856940), (28, 703915), (35, 563132), (46, 428470), (70, 281566), (92, 214235), (115, 171388), (140, 140783), (161, 122420), (230, 85694), (322, 61210), (460, 42847), (644, 30605), (805, 24484), (1610, 12242), (3220, 6121)]