201918320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1871}}^1$

素因数の和:1974

約数の個数: 80

約数和(自身を含む): 501396480

約数和(自身を除く): 299478160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 71, 76, 80, 95, 142, 152, 190, 284, 304, 355, 380, 568, 710, 760, 1136, 1349, 1420, 1520, 1871, 2698, 2840, 3742, 5396, 5680, 6745, 7484, 9355, 10792, 13490, 14968, 18710, 21584, 26980, 29936, 35549, 37420, 53960, 71098, 74840, 107920, 132841, 142196, 149680, 177745, 265682, 284392, 355490, 531364, 568784, 664205, 710980, 1062728, 1328410, 1421960, 2125456, 2523979, 2656820, 2843920, 5047958, 5313640, 10095916, 10627280, 12619895, 20191832, 25239790, 40383664, 50479580, 100959160, 201918320]

約数ペア:

[(1, 201918320), (2, 100959160), (4, 50479580), (5, 40383664), (8, 25239790), (10, 20191832), (16, 12619895), (19, 10627280), (20, 10095916), (38, 5313640), (40, 5047958), (71, 2843920), (76, 2656820), (80, 2523979), (95, 2125456), (142, 1421960), (152, 1328410), (190, 1062728), (284, 710980), (304, 664205), (355, 568784), (380, 531364), (568, 355490), (710, 284392), (760, 265682), (1136, 177745), (1349, 149680), (1420, 142196), (1520, 132841), (1871, 107920), (2698, 74840), (2840, 71098), (3742, 53960), (5396, 37420), (5680, 35549), (6745, 29936), (7484, 26980), (9355, 21584), (10792, 18710), (13490, 14968)]