19910340

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{36871}}^1$

素因数の和:36889

約数の個数: 48

約数和(自身を含む): 61944960

約数和(自身を除く): 42034620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 36871, 73742, 110613, 147484, 184355, 221226, 331839, 368710, 442452, 553065, 663678, 737420, 995517, 1106130, 1327356, 1659195, 1991034, 2212260, 3318390, 3982068, 4977585, 6636780, 9955170, 19910340]

約数ペア:

[(1, 19910340), (2, 9955170), (3, 6636780), (4, 4977585), (5, 3982068), (6, 3318390), (9, 2212260), (10, 1991034), (12, 1659195), (15, 1327356), (18, 1106130), (20, 995517), (27, 737420), (30, 663678), (36, 553065), (45, 442452), (54, 368710), (60, 331839), (90, 221226), (108, 184355), (135, 147484), (180, 110613), (270, 73742), (540, 36871)]