19704340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{641}}^1$

素因数の和:732

約数の個数: 48

約数和(自身を含む): 43681680

約数和(自身を除く): 23977340

約数列:

[1, 2, 4, 5, 10, 20, 29, 53, 58, 106, 116, 145, 212, 265, 290, 530, 580, 641, 1060, 1282, 1537, 2564, 3074, 3205, 6148, 6410, 7685, 12820, 15370, 18589, 30740, 33973, 37178, 67946, 74356, 92945, 135892, 169865, 185890, 339730, 371780, 679460, 985217, 1970434, 3940868, 4926085, 9852170, 19704340]

約数ペア:

[(1, 19704340), (2, 9852170), (4, 4926085), (5, 3940868), (10, 1970434), (20, 985217), (29, 679460), (53, 371780), (58, 339730), (106, 185890), (116, 169865), (145, 135892), (212, 92945), (265, 74356), (290, 67946), (530, 37178), (580, 33973), (641, 30740), (1060, 18589), (1282, 15370), (1537, 12820), (2564, 7685), (3074, 6410), (3205, 6148)]