19073540

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 41513472

約数和(自身を除く): 22439932

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 103, 188, 197, 206, 235, 394, 412, 470, 515, 788, 940, 985, 1030, 1970, 2060, 3940, 4841, 9259, 9682, 18518, 19364, 20291, 24205, 37036, 40582, 46295, 48410, 81164, 92590, 96820, 101455, 185180, 202910, 405820, 953677, 1907354, 3814708, 4768385, 9536770, 19073540]

約数ペア:

[(1, 19073540), (2, 9536770), (4, 4768385), (5, 3814708), (10, 1907354), (20, 953677), (47, 405820), (94, 202910), (103, 185180), (188, 101455), (197, 96820), (206, 92590), (235, 81164), (394, 48410), (412, 46295), (470, 40582), (515, 37036), (788, 24205), (940, 20291), (985, 19364), (1030, 18518), (1970, 9682), (2060, 9259), (3940, 4841)]