209382680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{419}}^1$

素因数の和:505

約数の個数: 96

約数和(自身を含む): 525495600

約数和(自身を除く): 316112920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 419, 520, 620, 806, 838, 961, 1240, 1612, 1676, 1922, 2015, 2095, 3224, 3352, 3844, 4030, 4190, 4805, 5447, 7688, 8060, 8380, 9610, 10894, 12493, 12989, 16120, 16760, 19220, 21788, 24986, 25978, 27235, 38440, 43576, 49972, 51956, 54470, 62465, 64945, 99944, 103912, 108940, 124930, 129890, 168857, 217880, 249860, 259780, 337714, 402659, 499720, 519560, 675428, 805318, 844285, 1350856, 1610636, 1688570, 2013295, 3221272, 3377140, 4026590, 5234567, 6754280, 8053180, 10469134, 16106360, 20938268, 26172835, 41876536, 52345670, 104691340, 209382680]

約数ペア:

[(1, 209382680), (2, 104691340), (4, 52345670), (5, 41876536), (8, 26172835), (10, 20938268), (13, 16106360), (20, 10469134), (26, 8053180), (31, 6754280), (40, 5234567), (52, 4026590), (62, 3377140), (65, 3221272), (104, 2013295), (124, 1688570), (130, 1610636), (155, 1350856), (248, 844285), (260, 805318), (310, 675428), (403, 519560), (419, 499720), (520, 402659), (620, 337714), (806, 259780), (838, 249860), (961, 217880), (1240, 168857), (1612, 129890), (1676, 124930), (1922, 108940), (2015, 103912), (2095, 99944), (3224, 64945), (3352, 62465), (3844, 54470), (4030, 51956), (4190, 49972), (4805, 43576), (5447, 38440), (7688, 27235), (8060, 25978), (8380, 24986), (9610, 21788), (10894, 19220), (12493, 16760), (12989, 16120)]