128756320

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1493}}^1$

素因数の和:1533

約数の個数: 144

約数和(自身を含む): 386276688

約数和(自身を除く): 257520368

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 160, 176, 196, 220, 224, 245, 280, 308, 352, 385, 392, 440, 490, 539, 560, 616, 770, 784, 880, 980, 1078, 1120, 1232, 1493, 1540, 1568, 1760, 1960, 2156, 2464, 2695, 2986, 3080, 3920, 4312, 5390, 5972, 6160, 7465, 7840, 8624, 10451, 10780, 11944, 12320, 14930, 16423, 17248, 20902, 21560, 23888, 29860, 32846, 41804, 43120, 47776, 52255, 59720, 65692, 73157, 82115, 83608, 86240, 104510, 114961, 119440, 131384, 146314, 164230, 167216, 209020, 229922, 238880, 262768, 292628, 328460, 334432, 365785, 418040, 459844, 525536, 574805, 585256, 656920, 731570, 804727, 836080, 919688, 1149610, 1170512, 1313840, 1463140, 1609454, 1672160, 1839376, 2299220, 2341024, 2627680, 2926280, 3218908, 3678752, 4023635, 4598440, 5852560, 6437816, 8047270, 9196880, 11705120, 12875632, 16094540, 18393760, 25751264, 32189080, 64378160, 128756320]

約数ペア:

[(1, 128756320), (2, 64378160), (4, 32189080), (5, 25751264), (7, 18393760), (8, 16094540), (10, 12875632), (11, 11705120), (14, 9196880), (16, 8047270), (20, 6437816), (22, 5852560), (28, 4598440), (32, 4023635), (35, 3678752), (40, 3218908), (44, 2926280), (49, 2627680), (55, 2341024), (56, 2299220), (70, 1839376), (77, 1672160), (80, 1609454), (88, 1463140), (98, 1313840), (110, 1170512), (112, 1149610), (140, 919688), (154, 836080), (160, 804727), (176, 731570), (196, 656920), (220, 585256), (224, 574805), (245, 525536), (280, 459844), (308, 418040), (352, 365785), (385, 334432), (392, 328460), (440, 292628), (490, 262768), (539, 238880), (560, 229922), (616, 209020), (770, 167216), (784, 164230), (880, 146314), (980, 131384), (1078, 119440), (1120, 114961), (1232, 104510), (1493, 86240), (1540, 83608), (1568, 82115), (1760, 73157), (1960, 65692), (2156, 59720), (2464, 52255), (2695, 47776), (2986, 43120), (3080, 41804), (3920, 32846), (4312, 29860), (5390, 23888), (5972, 21560), (6160, 20902), (7465, 17248), (7840, 16423), (8624, 14930), (10451, 12320), (10780, 11944)]