21840340

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{601}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 48545280

約数和(自身を除く): 26704940

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 79, 92, 115, 158, 230, 316, 395, 460, 601, 790, 1202, 1580, 1817, 2404, 3005, 3634, 6010, 7268, 9085, 12020, 13823, 18170, 27646, 36340, 47479, 55292, 69115, 94958, 138230, 189916, 237395, 276460, 474790, 949580, 1092017, 2184034, 4368068, 5460085, 10920170, 21840340]

約数ペア:

[(1, 21840340), (2, 10920170), (4, 5460085), (5, 4368068), (10, 2184034), (20, 1092017), (23, 949580), (46, 474790), (79, 276460), (92, 237395), (115, 189916), (158, 138230), (230, 94958), (316, 69115), (395, 55292), (460, 47479), (601, 36340), (790, 27646), (1202, 18170), (1580, 13823), (1817, 12020), (2404, 9085), (3005, 7268), (3634, 6010)]