68668880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2609}}^1$

素因数の和:2676

約数の個数: 80

約数和(自身を含む): 186416640

約数和(自身を除く): 117747760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 56, 70, 80, 94, 112, 140, 188, 235, 280, 329, 376, 470, 560, 658, 752, 940, 1316, 1645, 1880, 2609, 2632, 3290, 3760, 5218, 5264, 6580, 10436, 13045, 13160, 18263, 20872, 26090, 26320, 36526, 41744, 52180, 73052, 91315, 104360, 122623, 146104, 182630, 208720, 245246, 292208, 365260, 490492, 613115, 730520, 858361, 980984, 1226230, 1461040, 1716722, 1961968, 2452460, 3433444, 4291805, 4904920, 6866888, 8583610, 9809840, 13733776, 17167220, 34334440, 68668880]

約数ペア:

[(1, 68668880), (2, 34334440), (4, 17167220), (5, 13733776), (7, 9809840), (8, 8583610), (10, 6866888), (14, 4904920), (16, 4291805), (20, 3433444), (28, 2452460), (35, 1961968), (40, 1716722), (47, 1461040), (56, 1226230), (70, 980984), (80, 858361), (94, 730520), (112, 613115), (140, 490492), (188, 365260), (235, 292208), (280, 245246), (329, 208720), (376, 182630), (470, 146104), (560, 122623), (658, 104360), (752, 91315), (940, 73052), (1316, 52180), (1645, 41744), (1880, 36526), (2609, 26320), (2632, 26090), (3290, 20872), (3760, 18263), (5218, 13160), (5264, 13045), (6580, 10436)]