213709340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43261}}^1$

素因数の和:43302

約数の個数: 48

約数和(自身を含む): 508761120

約数和(自身を除く): 295051780

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 43261, 86522, 173044, 216305, 432610, 562393, 821959, 865220, 1124786, 1643918, 2249572, 2811965, 3287836, 4109795, 5623930, 8219590, 10685467, 11247860, 16439180, 21370934, 42741868, 53427335, 106854670, 213709340]

約数ペア:

[(1, 213709340), (2, 106854670), (4, 53427335), (5, 42741868), (10, 21370934), (13, 16439180), (19, 11247860), (20, 10685467), (26, 8219590), (38, 5623930), (52, 4109795), (65, 3287836), (76, 2811965), (95, 2249572), (130, 1643918), (190, 1124786), (247, 865220), (260, 821959), (380, 562393), (494, 432610), (988, 216305), (1235, 173044), (2470, 86522), (4940, 43261)]