2019910340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{20011}}^1$

素因数の和:20137

約数の個数: 72

約数和(自身を含む): 4982507712

約数和(自身を除く): 2962597372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 103, 140, 196, 206, 245, 412, 490, 515, 721, 980, 1030, 1442, 2060, 2884, 3605, 5047, 7210, 10094, 14420, 20011, 20188, 25235, 40022, 50470, 80044, 100055, 100940, 140077, 200110, 280154, 400220, 560308, 700385, 980539, 1400770, 1961078, 2061133, 2801540, 3922156, 4122266, 4902695, 8244532, 9805390, 10305665, 14427931, 19610780, 20611330, 28855862, 41222660, 57711724, 72139655, 100995517, 144279310, 201991034, 288558620, 403982068, 504977585, 1009955170, 2019910340]

約数ペア:

[(1, 2019910340), (2, 1009955170), (4, 504977585), (5, 403982068), (7, 288558620), (10, 201991034), (14, 144279310), (20, 100995517), (28, 72139655), (35, 57711724), (49, 41222660), (70, 28855862), (98, 20611330), (103, 19610780), (140, 14427931), (196, 10305665), (206, 9805390), (245, 8244532), (412, 4902695), (490, 4122266), (515, 3922156), (721, 2801540), (980, 2061133), (1030, 1961078), (1442, 1400770), (2060, 980539), (2884, 700385), (3605, 560308), (5047, 400220), (7210, 280154), (10094, 200110), (14420, 140077), (20011, 100940), (20188, 100055), (25235, 80044), (40022, 50470)]