20239655

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 27302400

約数和(自身を除く): 7062745

約数列:

[1, 5, 19, 23, 59, 95, 115, 157, 295, 437, 785, 1121, 1357, 2185, 2983, 3611, 5605, 6785, 9263, 14915, 18055, 25783, 46315, 68609, 128915, 175997, 213049, 343045, 879985, 1065245, 4047931, 20239655]

約数ペア:

[(1, 20239655), (5, 4047931), (19, 1065245), (23, 879985), (59, 343045), (95, 213049), (115, 175997), (157, 128915), (295, 68609), (437, 46315), (785, 25783), (1121, 18055), (1357, 14915), (2185, 9263), (2983, 6785), (3611, 5605)]