38688440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{19739}}^1$

素因数の和:19764

約数の個数: 48

約数和(自身を含む): 101266200

約数和(自身を除く): 62577760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 19739, 39478, 78956, 98695, 138173, 157912, 197390, 276346, 394780, 552692, 690865, 789560, 967211, 1105384, 1381730, 1934422, 2763460, 3868844, 4836055, 5526920, 7737688, 9672110, 19344220, 38688440]

約数ペア:

[(1, 38688440), (2, 19344220), (4, 9672110), (5, 7737688), (7, 5526920), (8, 4836055), (10, 3868844), (14, 2763460), (20, 1934422), (28, 1381730), (35, 1105384), (40, 967211), (49, 789560), (56, 690865), (70, 552692), (98, 394780), (140, 276346), (196, 197390), (245, 157912), (280, 138173), (392, 98695), (490, 78956), (980, 39478), (1960, 19739)]