18996818464

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{2383}}^1\times {\mathrm{19163}}^1$

素因数の和:21569

約数の個数: 48

約数和(自身を含む): 40295912832

約数和(自身を除く): 21299094368

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 2383, 4766, 9532, 19064, 19163, 30979, 38128, 38326, 61958, 76256, 76652, 123916, 153304, 247832, 249119, 306608, 495664, 498238, 613216, 991328, 996476, 1992952, 3985904, 7971808, 45665429, 91330858, 182661716, 365323432, 593650577, 730646864, 1187301154, 1461293728, 2374602308, 4749204616, 9498409232, 18996818464]

約数ペア:

[(1, 18996818464), (2, 9498409232), (4, 4749204616), (8, 2374602308), (13, 1461293728), (16, 1187301154), (26, 730646864), (32, 593650577), (52, 365323432), (104, 182661716), (208, 91330858), (416, 45665429), (2383, 7971808), (4766, 3985904), (9532, 1992952), (19064, 996476), (19163, 991328), (30979, 613216), (38128, 498238), (38326, 495664), (61958, 306608), (76256, 249119), (76652, 247832), (123916, 153304)]