20296444

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 42649600

約数和(自身を除く): 22353156

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 67, 124, 134, 217, 268, 349, 434, 469, 698, 868, 938, 1396, 1876, 2077, 2443, 4154, 4886, 8308, 9772, 10819, 14539, 21638, 23383, 29078, 43276, 46766, 58156, 75733, 93532, 151466, 163681, 302932, 327362, 654724, 724873, 1449746, 2899492, 5074111, 10148222, 20296444]

約数ペア:

[(1, 20296444), (2, 10148222), (4, 5074111), (7, 2899492), (14, 1449746), (28, 724873), (31, 654724), (62, 327362), (67, 302932), (124, 163681), (134, 151466), (217, 93532), (268, 75733), (349, 58156), (434, 46766), (469, 43276), (698, 29078), (868, 23383), (938, 21638), (1396, 14539), (1876, 10819), (2077, 9772), (2443, 8308), (4154, 4886)]