20213248

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:163

約数の個数: 80

約数和(自身を含む): 45715824

約数和(自身を除く): 25502576

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 37, 44, 64, 74, 88, 97, 128, 148, 176, 194, 256, 296, 352, 388, 407, 512, 592, 704, 776, 814, 1067, 1184, 1408, 1552, 1628, 2134, 2368, 2816, 3104, 3256, 3589, 4268, 4736, 5632, 6208, 6512, 7178, 8536, 9472, 12416, 13024, 14356, 17072, 18944, 24832, 26048, 28712, 34144, 39479, 49664, 52096, 57424, 68288, 78958, 104192, 114848, 136576, 157916, 208384, 229696, 273152, 315832, 459392, 546304, 631664, 918784, 1263328, 1837568, 2526656, 5053312, 10106624, 20213248]

約数ペア:

[(1, 20213248), (2, 10106624), (4, 5053312), (8, 2526656), (11, 1837568), (16, 1263328), (22, 918784), (32, 631664), (37, 546304), (44, 459392), (64, 315832), (74, 273152), (88, 229696), (97, 208384), (128, 157916), (148, 136576), (176, 114848), (194, 104192), (256, 78958), (296, 68288), (352, 57424), (388, 52096), (407, 49664), (512, 39479), (592, 34144), (704, 28712), (776, 26048), (814, 24832), (1067, 18944), (1184, 17072), (1408, 14356), (1552, 13024), (1628, 12416), (2134, 9472), (2368, 8536), (2816, 7178), (3104, 6512), (3256, 6208), (3589, 5632), (4268, 4736)]