1209870840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{557}}^1\times {\mathrm{787}}^1$

素因数の和:1381

約数の個数: 128

約数和(自身を含む): 3799042560

約数和(自身を除く): 2589171720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 557, 690, 787, 920, 1114, 1380, 1574, 1671, 2228, 2361, 2760, 2785, 3148, 3342, 3935, 4456, 4722, 5570, 6296, 6684, 7870, 8355, 9444, 11140, 11805, 12811, 13368, 15740, 16710, 18101, 18888, 22280, 23610, 25622, 31480, 33420, 36202, 38433, 47220, 51244, 54303, 64055, 66840, 72404, 76866, 90505, 94440, 102488, 108606, 128110, 144808, 153732, 181010, 192165, 217212, 256220, 271515, 307464, 362020, 384330, 434424, 438359, 512440, 543030, 724040, 768660, 876718, 1086060, 1315077, 1537320, 1753436, 2172120, 2191795, 2630154, 3506872, 4383590, 5260308, 6575385, 8767180, 10082257, 10520616, 13150770, 17534360, 20164514, 26301540, 30246771, 40329028, 50411285, 52603080, 60493542, 80658056, 100822570, 120987084, 151233855, 201645140, 241974168, 302467710, 403290280, 604935420, 1209870840]

約数ペア:

[(1, 1209870840), (2, 604935420), (3, 403290280), (4, 302467710), (5, 241974168), (6, 201645140), (8, 151233855), (10, 120987084), (12, 100822570), (15, 80658056), (20, 60493542), (23, 52603080), (24, 50411285), (30, 40329028), (40, 30246771), (46, 26301540), (60, 20164514), (69, 17534360), (92, 13150770), (115, 10520616), (120, 10082257), (138, 8767180), (184, 6575385), (230, 5260308), (276, 4383590), (345, 3506872), (460, 2630154), (552, 2191795), (557, 2172120), (690, 1753436), (787, 1537320), (920, 1315077), (1114, 1086060), (1380, 876718), (1574, 768660), (1671, 724040), (2228, 543030), (2361, 512440), (2760, 438359), (2785, 434424), (3148, 384330), (3342, 362020), (3935, 307464), (4456, 271515), (4722, 256220), (5570, 217212), (6296, 192165), (6684, 181010), (7870, 153732), (8355, 144808), (9444, 128110), (11140, 108606), (11805, 102488), (12811, 94440), (13368, 90505), (15740, 76866), (16710, 72404), (18101, 66840), (18888, 64055), (22280, 54303), (23610, 51244), (25622, 47220), (31480, 38433), (33420, 36202)]