20181434

素因数分解:

$2^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:140

約数の個数: 64

約数和(自身を含む): 39782400

約数和(自身を除く): 19600966

約数列:

[1, 2, 7, 13, 14, 26, 31, 49, 62, 73, 91, 98, 146, 182, 217, 343, 403, 434, 511, 637, 686, 806, 949, 1022, 1274, 1519, 1898, 2263, 2821, 3038, 3577, 4459, 4526, 5642, 6643, 7154, 8918, 10633, 13286, 15841, 19747, 21266, 25039, 29419, 31682, 39494, 46501, 50078, 58838, 93002, 110887, 138229, 205933, 221774, 276458, 325507, 411866, 651014, 776209, 1441531, 1552418, 2883062, 10090717, 20181434]

約数ペア:

[(1, 20181434), (2, 10090717), (7, 2883062), (13, 1552418), (14, 1441531), (26, 776209), (31, 651014), (49, 411866), (62, 325507), (73, 276458), (91, 221774), (98, 205933), (146, 138229), (182, 110887), (217, 93002), (343, 58838), (403, 50078), (434, 46501), (511, 39494), (637, 31682), (686, 29419), (806, 25039), (949, 21266), (1022, 19747), (1274, 15841), (1519, 13286), (1898, 10633), (2263, 8918), (2821, 7154), (3038, 6643), (3577, 5642), (4459, 4526)]