7820120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2539}}^1$

素因数の和:2568

約数の個数: 64

約数和(自身を含む): 21945600

約数和(自身を除く): 14125480

約数列:

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

約数ペア:

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