20703008

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2003}}^1$

素因数の和:2049

約数の個数: 48

約数和(自身を含む): 45450720

約数和(自身を除く): 24747712

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 68, 76, 136, 152, 272, 304, 323, 544, 608, 646, 1292, 2003, 2584, 4006, 5168, 8012, 10336, 16024, 32048, 34051, 38057, 64096, 68102, 76114, 136204, 152228, 272408, 304456, 544816, 608912, 646969, 1089632, 1217824, 1293938, 2587876, 5175752, 10351504, 20703008]

約数ペア:

[(1, 20703008), (2, 10351504), (4, 5175752), (8, 2587876), (16, 1293938), (17, 1217824), (19, 1089632), (32, 646969), (34, 608912), (38, 544816), (68, 304456), (76, 272408), (136, 152228), (152, 136204), (272, 76114), (304, 68102), (323, 64096), (544, 38057), (608, 34051), (646, 32048), (1292, 16024), (2003, 10336), (2584, 8012), (4006, 5168)]