38180140

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{199}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 82555200

約数和(自身を除く): 44375060

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 181, 199, 212, 265, 362, 398, 530, 724, 796, 905, 995, 1060, 1810, 1990, 3620, 3980, 9593, 10547, 19186, 21094, 36019, 38372, 42188, 47965, 52735, 72038, 95930, 105470, 144076, 180095, 191860, 210940, 360190, 720380, 1909007, 3818014, 7636028, 9545035, 19090070, 38180140]

約数ペア:

[(1, 38180140), (2, 19090070), (4, 9545035), (5, 7636028), (10, 3818014), (20, 1909007), (53, 720380), (106, 360190), (181, 210940), (199, 191860), (212, 180095), (265, 144076), (362, 105470), (398, 95930), (530, 72038), (724, 52735), (796, 47965), (905, 42188), (995, 38372), (1060, 36019), (1810, 21094), (1990, 19186), (3620, 10547), (3980, 9593)]