19568800

素因数分解:

$2^5\times 5^2\times {\mathrm{61}}^1\times {\mathrm{401}}^1$

素因数の和:482

約数の個数: 72

約数和(自身を含む): 48676572

約数和(自身を除く): 29107772

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 61, 80, 100, 122, 160, 200, 244, 305, 400, 401, 488, 610, 800, 802, 976, 1220, 1525, 1604, 1952, 2005, 2440, 3050, 3208, 4010, 4880, 6100, 6416, 8020, 9760, 10025, 12200, 12832, 16040, 20050, 24400, 24461, 32080, 40100, 48800, 48922, 64160, 80200, 97844, 122305, 160400, 195688, 244610, 320800, 391376, 489220, 611525, 782752, 978440, 1223050, 1956880, 2446100, 3913760, 4892200, 9784400, 19568800]

約数ペア:

[(1, 19568800), (2, 9784400), (4, 4892200), (5, 3913760), (8, 2446100), (10, 1956880), (16, 1223050), (20, 978440), (25, 782752), (32, 611525), (40, 489220), (50, 391376), (61, 320800), (80, 244610), (100, 195688), (122, 160400), (160, 122305), (200, 97844), (244, 80200), (305, 64160), (400, 48922), (401, 48800), (488, 40100), (610, 32080), (800, 24461), (802, 24400), (976, 20050), (1220, 16040), (1525, 12832), (1604, 12200), (1952, 10025), (2005, 9760), (2440, 8020), (3050, 6416), (3208, 6100), (4010, 4880)]