31280480

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2539}}^1$

素因数の和:2572

約数の個数: 96

約数和(自身を含む): 92171520

約数和(自身を除く): 60891040

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 352, 385, 440, 560, 616, 770, 880, 1120, 1232, 1540, 1760, 2464, 2539, 3080, 5078, 6160, 10156, 12320, 12695, 17773, 20312, 25390, 27929, 35546, 40624, 50780, 55858, 71092, 81248, 88865, 101560, 111716, 139645, 142184, 177730, 195503, 203120, 223432, 279290, 284368, 355460, 391006, 406240, 446864, 558580, 568736, 710920, 782012, 893728, 977515, 1117160, 1421840, 1564024, 1955030, 2234320, 2843680, 3128048, 3910060, 4468640, 6256096, 7820120, 15640240, 31280480]

約数ペア:

[(1, 31280480), (2, 15640240), (4, 7820120), (5, 6256096), (7, 4468640), (8, 3910060), (10, 3128048), (11, 2843680), (14, 2234320), (16, 1955030), (20, 1564024), (22, 1421840), (28, 1117160), (32, 977515), (35, 893728), (40, 782012), (44, 710920), (55, 568736), (56, 558580), (70, 446864), (77, 406240), (80, 391006), (88, 355460), (110, 284368), (112, 279290), (140, 223432), (154, 203120), (160, 195503), (176, 177730), (220, 142184), (224, 139645), (280, 111716), (308, 101560), (352, 88865), (385, 81248), (440, 71092), (560, 55858), (616, 50780), (770, 40624), (880, 35546), (1120, 27929), (1232, 25390), (1540, 20312), (1760, 17773), (2464, 12695), (2539, 12320), (3080, 10156), (5078, 6160)]