128378068

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{367}}^1$

素因数の和:453

約数の個数: 72

約数和(自身を含む): 286492416

約数和(自身を除く): 158114348

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 182, 217, 364, 367, 403, 434, 734, 806, 868, 961, 1468, 1612, 1922, 2569, 2821, 3844, 4771, 5138, 5642, 6727, 9542, 10276, 11284, 11377, 12493, 13454, 19084, 22754, 24986, 26908, 33397, 45508, 49972, 66794, 79639, 87451, 133588, 147901, 159278, 174902, 295802, 318556, 349804, 352687, 591604, 705374, 1035307, 1410748, 2070614, 2468809, 4141228, 4584931, 4937618, 9169862, 9875236, 18339724, 32094517, 64189034, 128378068]

約数ペア:

[(1, 128378068), (2, 64189034), (4, 32094517), (7, 18339724), (13, 9875236), (14, 9169862), (26, 4937618), (28, 4584931), (31, 4141228), (52, 2468809), (62, 2070614), (91, 1410748), (124, 1035307), (182, 705374), (217, 591604), (364, 352687), (367, 349804), (403, 318556), (434, 295802), (734, 174902), (806, 159278), (868, 147901), (961, 133588), (1468, 87451), (1612, 79639), (1922, 66794), (2569, 49972), (2821, 45508), (3844, 33397), (4771, 26908), (5138, 24986), (5642, 22754), (6727, 19084), (9542, 13454), (10276, 12493), (11284, 11377)]