19619680

素因数分解:

$2^5\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2609}}^1$

素因数の和:2671

約数の個数: 48

約数和(自身を含む): 47355840

約数和(自身を除く): 27736160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 80, 94, 160, 188, 235, 376, 470, 752, 940, 1504, 1880, 2609, 3760, 5218, 7520, 10436, 13045, 20872, 26090, 41744, 52180, 83488, 104360, 122623, 208720, 245246, 417440, 490492, 613115, 980984, 1226230, 1961968, 2452460, 3923936, 4904920, 9809840, 19619680]

約数ペア:

[(1, 19619680), (2, 9809840), (4, 4904920), (5, 3923936), (8, 2452460), (10, 1961968), (16, 1226230), (20, 980984), (32, 613115), (40, 490492), (47, 417440), (80, 245246), (94, 208720), (160, 122623), (188, 104360), (235, 83488), (376, 52180), (470, 41744), (752, 26090), (940, 20872), (1504, 13045), (1880, 10436), (2609, 7520), (3760, 5218)]