79719580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{509}}^1$

素因数の和:750

約数の個数: 48

約数和(自身を含む): 172730880

約数和(自身を除く): 93011300

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 191, 205, 382, 410, 509, 764, 820, 955, 1018, 1910, 2036, 2545, 3820, 5090, 7831, 10180, 15662, 20869, 31324, 39155, 41738, 78310, 83476, 97219, 104345, 156620, 194438, 208690, 388876, 417380, 486095, 972190, 1944380, 3985979, 7971958, 15943916, 19929895, 39859790, 79719580]

約数ペア:

[(1, 79719580), (2, 39859790), (4, 19929895), (5, 15943916), (10, 7971958), (20, 3985979), (41, 1944380), (82, 972190), (164, 486095), (191, 417380), (205, 388876), (382, 208690), (410, 194438), (509, 156620), (764, 104345), (820, 97219), (955, 83476), (1018, 78310), (1910, 41738), (2036, 39155), (2545, 31324), (3820, 20869), (5090, 15662), (7831, 10180)]