19404810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{859}}^1$

素因数の和:1123

約数の個数: 48

約数和(自身を含む): 50712480

約数和(自身を除く): 31307670

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 251, 502, 753, 859, 1255, 1506, 1718, 2259, 2510, 2577, 3765, 4295, 4518, 5154, 7530, 7731, 8590, 11295, 12885, 15462, 22590, 25770, 38655, 77310, 215609, 431218, 646827, 1078045, 1293654, 1940481, 2156090, 3234135, 3880962, 6468270, 9702405, 19404810]

約数ペア:

[(1, 19404810), (2, 9702405), (3, 6468270), (5, 3880962), (6, 3234135), (9, 2156090), (10, 1940481), (15, 1293654), (18, 1078045), (30, 646827), (45, 431218), (90, 215609), (251, 77310), (502, 38655), (753, 25770), (859, 22590), (1255, 15462), (1506, 12885), (1718, 11295), (2259, 8590), (2510, 7731), (2577, 7530), (3765, 5154), (4295, 4518)]