78478720

素因数分解:

$2^7\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2609}}^1$

素因数の和:2675

約数の個数: 64

約数和(自身を含む): 191678400

約数和(自身を除く): 113199680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 128, 160, 188, 235, 320, 376, 470, 640, 752, 940, 1504, 1880, 2609, 3008, 3760, 5218, 6016, 7520, 10436, 13045, 15040, 20872, 26090, 30080, 41744, 52180, 83488, 104360, 122623, 166976, 208720, 245246, 333952, 417440, 490492, 613115, 834880, 980984, 1226230, 1669760, 1961968, 2452460, 3923936, 4904920, 7847872, 9809840, 15695744, 19619680, 39239360, 78478720]

約数ペア:

[(1, 78478720), (2, 39239360), (4, 19619680), (5, 15695744), (8, 9809840), (10, 7847872), (16, 4904920), (20, 3923936), (32, 2452460), (40, 1961968), (47, 1669760), (64, 1226230), (80, 980984), (94, 834880), (128, 613115), (160, 490492), (188, 417440), (235, 333952), (320, 245246), (376, 208720), (470, 166976), (640, 122623), (752, 104360), (940, 83488), (1504, 52180), (1880, 41744), (2609, 30080), (3008, 26090), (3760, 20872), (5218, 15040), (6016, 13045), (7520, 10436)]