208627520

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21031}}^1$

素因数の和:21079

約数の個数: 56

約数和(自身を含む): 512844288

約数和(自身を除く): 304216768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 21031, 42062, 84124, 105155, 168248, 210310, 336496, 420620, 651961, 672992, 841240, 1303922, 1345984, 1682480, 2607844, 3259805, 3364960, 5215688, 6519610, 6729920, 10431376, 13039220, 20862752, 26078440, 41725504, 52156880, 104313760, 208627520]

約数ペア:

[(1, 208627520), (2, 104313760), (4, 52156880), (5, 41725504), (8, 26078440), (10, 20862752), (16, 13039220), (20, 10431376), (31, 6729920), (32, 6519610), (40, 5215688), (62, 3364960), (64, 3259805), (80, 2607844), (124, 1682480), (155, 1345984), (160, 1303922), (248, 841240), (310, 672992), (320, 651961), (496, 420620), (620, 336496), (992, 210310), (1240, 168248), (1984, 105155), (2480, 84124), (4960, 42062), (9920, 21031)]