15640240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2539}}^1$

素因数の和:2570

約数の個数: 80

約数和(自身を含む): 45354240

約数和(自身を除く): 29714000

約数列:

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

約数ペア:

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