20787872

素因数分解:

$2^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:190

約数の個数: 96

約数和(自身を含む): 50948352

約数和(自身を除く): 30160480

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 53, 56, 68, 103, 106, 112, 119, 136, 206, 212, 224, 238, 272, 371, 412, 424, 476, 544, 721, 742, 824, 848, 901, 952, 1442, 1484, 1648, 1696, 1751, 1802, 1904, 2884, 2968, 3296, 3502, 3604, 3808, 5459, 5768, 5936, 6307, 7004, 7208, 10918, 11536, 11872, 12257, 12614, 14008, 14416, 21836, 23072, 24514, 25228, 28016, 28832, 38213, 43672, 49028, 50456, 56032, 76426, 87344, 92803, 98056, 100912, 152852, 174688, 185606, 196112, 201824, 305704, 371212, 392224, 611408, 649621, 742424, 1222816, 1299242, 1484848, 2598484, 2969696, 5196968, 10393936, 20787872]

約数ペア:

[(1, 20787872), (2, 10393936), (4, 5196968), (7, 2969696), (8, 2598484), (14, 1484848), (16, 1299242), (17, 1222816), (28, 742424), (32, 649621), (34, 611408), (53, 392224), (56, 371212), (68, 305704), (103, 201824), (106, 196112), (112, 185606), (119, 174688), (136, 152852), (206, 100912), (212, 98056), (224, 92803), (238, 87344), (272, 76426), (371, 56032), (412, 50456), (424, 49028), (476, 43672), (544, 38213), (721, 28832), (742, 28016), (824, 25228), (848, 24514), (901, 23072), (952, 21836), (1442, 14416), (1484, 14008), (1648, 12614), (1696, 12257), (1751, 11872), (1802, 11536), (1904, 10918), (2884, 7208), (2968, 7004), (3296, 6307), (3502, 5936), (3604, 5768), (3808, 5459)]