81677120

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{5209}}^1$

素因数の和:5240

約数の個数: 84

約数和(自身を含む): 226291140

約数和(自身を除く): 144614020

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 784, 980, 1120, 1568, 1960, 2240, 3136, 3920, 5209, 7840, 10418, 15680, 20836, 26045, 36463, 41672, 52090, 72926, 83344, 104180, 145852, 166688, 182315, 208360, 255241, 291704, 333376, 364630, 416720, 510482, 583408, 729260, 833440, 1020964, 1166816, 1276205, 1458520, 1666880, 2041928, 2333632, 2552410, 2917040, 4083856, 5104820, 5834080, 8167712, 10209640, 11668160, 16335424, 20419280, 40838560, 81677120]

約数ペア:

[(1, 81677120), (2, 40838560), (4, 20419280), (5, 16335424), (7, 11668160), (8, 10209640), (10, 8167712), (14, 5834080), (16, 5104820), (20, 4083856), (28, 2917040), (32, 2552410), (35, 2333632), (40, 2041928), (49, 1666880), (56, 1458520), (64, 1276205), (70, 1166816), (80, 1020964), (98, 833440), (112, 729260), (140, 583408), (160, 510482), (196, 416720), (224, 364630), (245, 333376), (280, 291704), (320, 255241), (392, 208360), (448, 182315), (490, 166688), (560, 145852), (784, 104180), (980, 83344), (1120, 72926), (1568, 52090), (1960, 41672), (2240, 36463), (3136, 26045), (3920, 20836), (5209, 15680), (7840, 10418)]