19490380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10709}}^1$

素因数の和:10738

約数の個数: 48

約数和(自身を含む): 50379840

約数和(自身を除く): 30889460

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 10709, 21418, 42836, 53545, 74963, 107090, 139217, 149926, 214180, 278434, 299852, 374815, 556868, 696085, 749630, 974519, 1392170, 1499260, 1949038, 2784340, 3898076, 4872595, 9745190, 19490380]

約数ペア:

[(1, 19490380), (2, 9745190), (4, 4872595), (5, 3898076), (7, 2784340), (10, 1949038), (13, 1499260), (14, 1392170), (20, 974519), (26, 749630), (28, 696085), (35, 556868), (52, 374815), (65, 299852), (70, 278434), (91, 214180), (130, 149926), (140, 139217), (182, 107090), (260, 74963), (364, 53545), (455, 42836), (910, 21418), (1820, 10709)]