20915758070

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{16433}}^1\times {\mathrm{7487}}^1$

素因数の和:23944

約数の個数: 32

約数和(自身を含む): 39870724608

約数和(自身を除く): 18954966538

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 7487, 14974, 16433, 32866, 37435, 74870, 82165, 127279, 164330, 254558, 279361, 558722, 636395, 1272790, 1396805, 2793610, 123033871, 246067742, 615169355, 1230338710, 2091575807, 4183151614, 10457879035, 20915758070]

約数ペア:

[(1, 20915758070), (2, 10457879035), (5, 4183151614), (10, 2091575807), (17, 1230338710), (34, 615169355), (85, 246067742), (170, 123033871), (7487, 2793610), (14974, 1396805), (16433, 1272790), (32866, 636395), (37435, 558722), (74870, 279361), (82165, 254558), (127279, 164330)]