86850580

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1\times {\mathrm{277}}^1$

素因数の和:604

約数の個数: 48

約数和(自身を含む): 186769296

約数和(自身を除く): 99918716

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 257, 277, 305, 514, 554, 610, 1028, 1108, 1220, 1285, 1385, 2570, 2770, 5140, 5540, 15677, 16897, 31354, 33794, 62708, 67588, 71189, 78385, 84485, 142378, 156770, 168970, 284756, 313540, 337940, 355945, 711890, 1423780, 4342529, 8685058, 17370116, 21712645, 43425290, 86850580]

約数ペア:

[(1, 86850580), (2, 43425290), (4, 21712645), (5, 17370116), (10, 8685058), (20, 4342529), (61, 1423780), (122, 711890), (244, 355945), (257, 337940), (277, 313540), (305, 284756), (514, 168970), (554, 156770), (610, 142378), (1028, 84485), (1108, 78385), (1220, 71189), (1285, 67588), (1385, 62708), (2570, 33794), (2770, 31354), (5140, 16897), (5540, 15677)]