About the Number

121909840

121909839 ← → 121909841

2進数表記:111010001000011001001010000

漢数字表記:一億二千百九十万九千八百四十

素因数分解:

2 4 × 5 1 × 13 2 × 71 1 × 127 1

素因数の和:237
約数の個数: 120
約数和(自身を含む): 313694208
約数和(自身を除く): 191784368

約数列:
[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 71, 80, 104, 127, 130, 142, 169, 208, 254, 260, 284, 338, 355, 508, 520, 568, 635, 676, 710, 845, 923, 1016, 1040, 1136, 1270, 1352, 1420, 1651, 1690, 1846, 2032, 2540, 2704, 2840, 3302, 3380, 3692, 4615, 5080, 5680, 6604, 6760, 7384, 8255, 9017, 9230, 10160, 11999, 13208, 13520, 14768, 16510, 18034, 18460, 21463, 23998, 26416, 33020, 36068, 36920, 42926, 45085, 47996, 59995, 66040, 72136, 73840, 85852, 90170, 95992, 107315, 117221, 119990, 132080, 144272, 171704, 180340, 191984, 214630, 234442, 239980, 343408, 360680, 429260, 468884, 479960, 586105, 721360, 858520, 937768, 959920, 1172210, 1523873, 1717040, 1875536, 2344420, 3047746, 4688840, 6095492, 7619365, 9377680, 12190984, 15238730, 24381968, 30477460, 60954920, 121909840]

約数ペア:
[(1, 121909840), (2, 60954920), (4, 30477460), (5, 24381968), (8, 15238730), (10, 12190984), (13, 9377680), (16, 7619365), (20, 6095492), (26, 4688840), (40, 3047746), (52, 2344420), (65, 1875536), (71, 1717040), (80, 1523873), (104, 1172210), (127, 959920), (130, 937768), (142, 858520), (169, 721360), (208, 586105), (254, 479960), (260, 468884), (284, 429260), (338, 360680), (355, 343408), (508, 239980), (520, 234442), (568, 214630), (635, 191984), (676, 180340), (710, 171704), (845, 144272), (923, 132080), (1016, 119990), (1040, 117221), (1136, 107315), (1270, 95992), (1352, 90170), (1420, 85852), (1651, 73840), (1690, 72136), (1846, 66040), (2032, 59995), (2540, 47996), (2704, 45085), (2840, 42926), (3302, 36920), (3380, 36068), (3692, 33020), (4615, 26416), (5080, 23998), (5680, 21463), (6604, 18460), (6760, 18034), (7384, 16510), (8255, 14768), (9017, 13520), (9230, 13208), (10160, 11999)]

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