18300380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1951}}^1$

素因数の和:2034

約数の個数: 48

約数和(自身を含む): 44599296

約数和(自身を除く): 26298916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1876, 1951, 2345, 3902, 4690, 7804, 9380, 9755, 13657, 19510, 27314, 39020, 54628, 68285, 130717, 136570, 261434, 273140, 522868, 653585, 915019, 1307170, 1830038, 2614340, 3660076, 4575095, 9150190, 18300380]

約数ペア:

[(1, 18300380), (2, 9150190), (4, 4575095), (5, 3660076), (7, 2614340), (10, 1830038), (14, 1307170), (20, 915019), (28, 653585), (35, 522868), (67, 273140), (70, 261434), (134, 136570), (140, 130717), (268, 68285), (335, 54628), (469, 39020), (670, 27314), (938, 19510), (1340, 13657), (1876, 9755), (1951, 9380), (2345, 7804), (3902, 4690)]