20178406740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1278733}}^1$

素因数の和:1279008

約数の個数: 48

約数和(自身を含む): 56714410368

約数和(自身を除く): 36536003628

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 263, 526, 789, 1052, 1315, 1578, 2630, 3156, 3945, 5260, 7890, 15780, 1278733, 2557466, 3836199, 5114932, 6393665, 7672398, 12787330, 15344796, 19180995, 25574660, 38361990, 76723980, 336306779, 672613558, 1008920337, 1345227116, 1681533895, 2017840674, 3363067790, 4035681348, 5044601685, 6726135580, 10089203370, 20178406740]

約数ペア:

[(1, 20178406740), (2, 10089203370), (3, 6726135580), (4, 5044601685), (5, 4035681348), (6, 3363067790), (10, 2017840674), (12, 1681533895), (15, 1345227116), (20, 1008920337), (30, 672613558), (60, 336306779), (263, 76723980), (526, 38361990), (789, 25574660), (1052, 19180995), (1315, 15344796), (1578, 12787330), (2630, 7672398), (3156, 6393665), (3945, 5114932), (5260, 3836199), (7890, 2557466), (15780, 1278733)]