81169980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{967}}^1\times {\mathrm{1399}}^1$

素因数の和:2378

約数の個数: 48

約数和(自身を含む): 227673600

約数和(自身を除く): 146503620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 967, 1399, 1934, 2798, 2901, 3868, 4197, 4835, 5596, 5802, 6995, 8394, 9670, 11604, 13990, 14505, 16788, 19340, 20985, 27980, 29010, 41970, 58020, 83940, 1352833, 2705666, 4058499, 5411332, 6764165, 8116998, 13528330, 16233996, 20292495, 27056660, 40584990, 81169980]

約数ペア:

[(1, 81169980), (2, 40584990), (3, 27056660), (4, 20292495), (5, 16233996), (6, 13528330), (10, 8116998), (12, 6764165), (15, 5411332), (20, 4058499), (30, 2705666), (60, 1352833), (967, 83940), (1399, 58020), (1934, 41970), (2798, 29010), (2901, 27980), (3868, 20985), (4197, 19340), (4835, 16788), (5596, 14505), (5802, 13990), (6995, 11604), (8394, 9670)]