20576835

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^2$

素因数の和:134

約数の個数: 60

約数和(自身を含む): 39325968

約数和(自身を除く): 18749133

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 47, 69, 81, 115, 135, 141, 207, 235, 345, 405, 423, 621, 705, 1035, 1081, 1269, 1863, 2115, 2209, 3105, 3243, 3807, 5405, 6345, 6627, 9315, 9729, 11045, 16215, 19035, 19881, 29187, 33135, 48645, 50807, 59643, 87561, 99405, 145935, 152421, 178929, 254035, 298215, 437805, 457263, 762105, 894645, 1371789, 2286315, 4115367, 6858945, 20576835]

約数ペア:

[(1, 20576835), (3, 6858945), (5, 4115367), (9, 2286315), (15, 1371789), (23, 894645), (27, 762105), (45, 457263), (47, 437805), (69, 298215), (81, 254035), (115, 178929), (135, 152421), (141, 145935), (207, 99405), (235, 87561), (345, 59643), (405, 50807), (423, 48645), (621, 33135), (705, 29187), (1035, 19881), (1081, 19035), (1269, 16215), (1863, 11045), (2115, 9729), (2209, 9315), (3105, 6627), (3243, 6345), (3807, 5405)]