19255340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2389}}^1$

素因数の和:2442

約数の個数: 48

約数和(自身を含む): 44970240

約数和(自身を除く): 25714900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 2389, 4030, 4778, 8060, 9556, 11945, 23890, 31057, 47780, 62114, 74059, 124228, 148118, 155285, 296236, 310570, 370295, 621140, 740590, 962767, 1481180, 1925534, 3851068, 4813835, 9627670, 19255340]

約数ペア:

[(1, 19255340), (2, 9627670), (4, 4813835), (5, 3851068), (10, 1925534), (13, 1481180), (20, 962767), (26, 740590), (31, 621140), (52, 370295), (62, 310570), (65, 296236), (124, 155285), (130, 148118), (155, 124228), (260, 74059), (310, 62114), (403, 47780), (620, 31057), (806, 23890), (1612, 11945), (2015, 9556), (2389, 8060), (4030, 4778)]