18561856

素因数分解:

$2^6\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:251

約数の個数: 56

約数和(自身を含む): 38907720

約数和(自身を除く): 20345864

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 73, 116, 137, 146, 232, 274, 292, 464, 548, 584, 928, 1096, 1168, 1856, 2117, 2192, 2336, 3973, 4234, 4384, 4672, 7946, 8468, 8768, 10001, 15892, 16936, 20002, 31784, 33872, 40004, 63568, 67744, 80008, 127136, 135488, 160016, 254272, 290029, 320032, 580058, 640064, 1160116, 2320232, 4640464, 9280928, 18561856]

約数ペア:

[(1, 18561856), (2, 9280928), (4, 4640464), (8, 2320232), (16, 1160116), (29, 640064), (32, 580058), (58, 320032), (64, 290029), (73, 254272), (116, 160016), (137, 135488), (146, 127136), (232, 80008), (274, 67744), (292, 63568), (464, 40004), (548, 33872), (584, 31784), (928, 20002), (1096, 16936), (1168, 15892), (1856, 10001), (2117, 8768), (2192, 8468), (2336, 7946), (3973, 4672), (4234, 4384)]