1807397540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{139}}^1\times {\mathrm{3847}}^1$

素因数の和:4021

約数の個数: 72

約数和(自身を含む): 4140601920

約数和(自身を除く): 2333204380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 169, 260, 278, 338, 556, 676, 695, 845, 1390, 1690, 1807, 2780, 3380, 3614, 3847, 7228, 7694, 9035, 15388, 18070, 19235, 23491, 36140, 38470, 46982, 50011, 76940, 93964, 100022, 117455, 200044, 234910, 250055, 469820, 500110, 534733, 650143, 1000220, 1069466, 1300286, 2138932, 2600572, 2673665, 3250715, 5347330, 6501430, 6951529, 10694660, 13002860, 13903058, 27806116, 34757645, 69515290, 90369877, 139030580, 180739754, 361479508, 451849385, 903698770, 1807397540]

約数ペア:

[(1, 1807397540), (2, 903698770), (4, 451849385), (5, 361479508), (10, 180739754), (13, 139030580), (20, 90369877), (26, 69515290), (52, 34757645), (65, 27806116), (130, 13903058), (139, 13002860), (169, 10694660), (260, 6951529), (278, 6501430), (338, 5347330), (556, 3250715), (676, 2673665), (695, 2600572), (845, 2138932), (1390, 1300286), (1690, 1069466), (1807, 1000220), (2780, 650143), (3380, 534733), (3614, 500110), (3847, 469820), (7228, 250055), (7694, 234910), (9035, 200044), (15388, 117455), (18070, 100022), (19235, 93964), (23491, 76940), (36140, 50011), (38470, 46982)]