9909090

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{4787}}^1$

素因数の和:4823

約数の個数: 48

約数和(自身を含む): 26889408

約数和(自身を除く): 16980318

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 207, 230, 345, 414, 690, 1035, 2070, 4787, 9574, 14361, 23935, 28722, 43083, 47870, 71805, 86166, 110101, 143610, 215415, 220202, 330303, 430830, 550505, 660606, 990909, 1101010, 1651515, 1981818, 3303030, 4954545, 9909090]

約数ペア:

[(1, 9909090), (2, 4954545), (3, 3303030), (5, 1981818), (6, 1651515), (9, 1101010), (10, 990909), (15, 660606), (18, 550505), (23, 430830), (30, 330303), (45, 220202), (46, 215415), (69, 143610), (90, 110101), (115, 86166), (138, 71805), (207, 47870), (230, 43083), (345, 28722), (414, 23935), (690, 14361), (1035, 9574), (2070, 4787)]