About the Number

2108791880

2108791879 ← → 2108791881

2進数表記:1111101101100011001110001001000

漢数字表記:二十一億八百七十九万千八百八十

素因数分解:

2 3 × 5 1 × 13 1 × 73 2 × 761 1

素因数の和:931
約数の個数: 96
約数和(自身を含む): 5187528360
約数和(自身を除く): 3078736480

約数列:
[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 73, 104, 130, 146, 260, 292, 365, 520, 584, 730, 761, 949, 1460, 1522, 1898, 2920, 3044, 3796, 3805, 4745, 5329, 6088, 7592, 7610, 9490, 9893, 10658, 15220, 18980, 19786, 21316, 26645, 30440, 37960, 39572, 42632, 49465, 53290, 55553, 69277, 79144, 98930, 106580, 111106, 138554, 197860, 213160, 222212, 277108, 277765, 346385, 395720, 444424, 554216, 555530, 692770, 722189, 1111060, 1385540, 1444378, 2222120, 2771080, 2888756, 3610945, 4055369, 5777512, 7221890, 8110738, 14443780, 16221476, 20276845, 28887560, 32442952, 40553690, 52719797, 81107380, 105439594, 162214760, 210879188, 263598985, 421758376, 527197970, 1054395940, 2108791880]

約数ペア:
[(1, 2108791880), (2, 1054395940), (4, 527197970), (5, 421758376), (8, 263598985), (10, 210879188), (13, 162214760), (20, 105439594), (26, 81107380), (40, 52719797), (52, 40553690), (65, 32442952), (73, 28887560), (104, 20276845), (130, 16221476), (146, 14443780), (260, 8110738), (292, 7221890), (365, 5777512), (520, 4055369), (584, 3610945), (730, 2888756), (761, 2771080), (949, 2222120), (1460, 1444378), (1522, 1385540), (1898, 1111060), (2920, 722189), (3044, 692770), (3796, 555530), (3805, 554216), (4745, 444424), (5329, 395720), (6088, 346385), (7592, 277765), (7610, 277108), (9490, 222212), (9893, 213160), (10658, 197860), (15220, 138554), (18980, 111106), (19786, 106580), (21316, 98930), (26645, 79144), (30440, 69277), (37960, 55553), (39572, 53290), (42632, 49465)]

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