20681940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{4153}}^1$

素因数の和:4248

約数の個数: 48

約数和(自身を含む): 58621248

約数和(自身を除く): 37939308

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 83, 166, 249, 332, 415, 498, 830, 996, 1245, 1660, 2490, 4153, 4980, 8306, 12459, 16612, 20765, 24918, 41530, 49836, 62295, 83060, 124590, 249180, 344699, 689398, 1034097, 1378796, 1723495, 2068194, 3446990, 4136388, 5170485, 6893980, 10340970, 20681940]

約数ペア:

[(1, 20681940), (2, 10340970), (3, 6893980), (4, 5170485), (5, 4136388), (6, 3446990), (10, 2068194), (12, 1723495), (15, 1378796), (20, 1034097), (30, 689398), (60, 344699), (83, 249180), (166, 124590), (249, 83060), (332, 62295), (415, 49836), (498, 41530), (830, 24918), (996, 20765), (1245, 16612), (1660, 12459), (2490, 8306), (4153, 4980)]