128855340

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{661}}^1$

素因数の和:717

約数の個数: 144

約数和(自身を含む): 423732960

約数和(自身を除く): 294877620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 90, 95, 108, 114, 135, 171, 180, 190, 228, 270, 285, 342, 361, 380, 513, 540, 570, 661, 684, 722, 855, 1026, 1083, 1140, 1322, 1444, 1710, 1805, 1983, 2052, 2166, 2565, 2644, 3249, 3305, 3420, 3610, 3966, 4332, 5130, 5415, 5949, 6498, 6610, 7220, 7932, 9747, 9915, 10260, 10830, 11898, 12559, 12996, 13220, 16245, 17847, 19494, 19830, 21660, 23796, 25118, 29745, 32490, 35694, 37677, 38988, 39660, 48735, 50236, 59490, 62795, 64980, 71388, 75354, 89235, 97470, 113031, 118980, 125590, 150708, 178470, 188385, 194940, 226062, 238621, 251180, 339093, 356940, 376770, 452124, 477242, 565155, 678186, 715863, 753540, 954484, 1130310, 1193105, 1356372, 1431726, 1695465, 2147589, 2260620, 2386210, 2863452, 3390930, 3579315, 4295178, 4772420, 6442767, 6781860, 7158630, 8590356, 10737945, 12885534, 14317260, 21475890, 25771068, 32213835, 42951780, 64427670, 128855340]

約数ペア:

[(1, 128855340), (2, 64427670), (3, 42951780), (4, 32213835), (5, 25771068), (6, 21475890), (9, 14317260), (10, 12885534), (12, 10737945), (15, 8590356), (18, 7158630), (19, 6781860), (20, 6442767), (27, 4772420), (30, 4295178), (36, 3579315), (38, 3390930), (45, 2863452), (54, 2386210), (57, 2260620), (60, 2147589), (76, 1695465), (90, 1431726), (95, 1356372), (108, 1193105), (114, 1130310), (135, 954484), (171, 753540), (180, 715863), (190, 678186), (228, 565155), (270, 477242), (285, 452124), (342, 376770), (361, 356940), (380, 339093), (513, 251180), (540, 238621), (570, 226062), (661, 194940), (684, 188385), (722, 178470), (855, 150708), (1026, 125590), (1083, 118980), (1140, 113031), (1322, 97470), (1444, 89235), (1710, 75354), (1805, 71388), (1983, 64980), (2052, 62795), (2166, 59490), (2565, 50236), (2644, 48735), (3249, 39660), (3305, 38988), (3420, 37677), (3610, 35694), (3966, 32490), (4332, 29745), (5130, 25118), (5415, 23796), (5949, 21660), (6498, 19830), (6610, 19494), (7220, 17847), (7932, 16245), (9747, 13220), (9915, 12996), (10260, 12559), (10830, 11898)]