81741348

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{449}}^1$

素因数の和:861

約数の個数: 72

約数和(自身を含む): 223587000

約数和(自身を除く): 141845652

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 389, 449, 468, 778, 898, 1167, 1347, 1556, 1796, 2334, 2694, 3501, 4041, 4668, 5057, 5388, 5837, 7002, 8082, 10114, 11674, 14004, 15171, 16164, 17511, 20228, 23348, 30342, 35022, 45513, 52533, 60684, 70044, 91026, 105066, 174661, 182052, 210132, 349322, 523983, 698644, 1047966, 1571949, 2095932, 2270593, 3143898, 4541186, 6287796, 6811779, 9082372, 13623558, 20435337, 27247116, 40870674, 81741348]

約数ペア:

[(1, 81741348), (2, 40870674), (3, 27247116), (4, 20435337), (6, 13623558), (9, 9082372), (12, 6811779), (13, 6287796), (18, 4541186), (26, 3143898), (36, 2270593), (39, 2095932), (52, 1571949), (78, 1047966), (117, 698644), (156, 523983), (234, 349322), (389, 210132), (449, 182052), (468, 174661), (778, 105066), (898, 91026), (1167, 70044), (1347, 60684), (1556, 52533), (1796, 45513), (2334, 35022), (2694, 30342), (3501, 23348), (4041, 20228), (4668, 17511), (5057, 16164), (5388, 15171), (5837, 14004), (7002, 11674), (8082, 10114)]