20506288

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:170

約数の個数: 80

約数和(自身を含む): 46139904

約数和(自身を除く): 25633616

約数列:

[1, 2, 4, 8, 11, 16, 22, 37, 44, 47, 67, 74, 88, 94, 134, 148, 176, 188, 268, 296, 376, 407, 517, 536, 592, 737, 752, 814, 1034, 1072, 1474, 1628, 1739, 2068, 2479, 2948, 3149, 3256, 3478, 4136, 4958, 5896, 6298, 6512, 6956, 8272, 9916, 11792, 12596, 13912, 19129, 19832, 25192, 27269, 27824, 34639, 38258, 39664, 50384, 54538, 69278, 76516, 109076, 116513, 138556, 153032, 218152, 233026, 277112, 306064, 436304, 466052, 554224, 932104, 1281643, 1864208, 2563286, 5126572, 10253144, 20506288]

約数ペア:

[(1, 20506288), (2, 10253144), (4, 5126572), (8, 2563286), (11, 1864208), (16, 1281643), (22, 932104), (37, 554224), (44, 466052), (47, 436304), (67, 306064), (74, 277112), (88, 233026), (94, 218152), (134, 153032), (148, 138556), (176, 116513), (188, 109076), (268, 76516), (296, 69278), (376, 54538), (407, 50384), (517, 39664), (536, 38258), (592, 34639), (737, 27824), (752, 27269), (814, 25192), (1034, 19832), (1072, 19129), (1474, 13912), (1628, 12596), (1739, 11792), (2068, 9916), (2479, 8272), (2948, 6956), (3149, 6512), (3256, 6298), (3478, 5896), (4136, 4958)]