398813870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{8269}}^1$

素因数の和:8349

約数の個数: 64

約数和(自身を含む): 900305280

約数和(自身を除く): 501491410

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 53, 65, 70, 91, 106, 130, 182, 265, 371, 455, 530, 689, 742, 910, 1378, 1855, 3445, 3710, 4823, 6890, 8269, 9646, 16538, 24115, 41345, 48230, 57883, 82690, 107497, 115766, 214994, 289415, 438257, 537485, 578830, 752479, 876514, 1074970, 1504958, 2191285, 3067799, 3762395, 4382570, 5697341, 6135598, 7524790, 11394682, 15338995, 28486705, 30677990, 39881387, 56973410, 79762774, 199406935, 398813870]

約数ペア:

[(1, 398813870), (2, 199406935), (5, 79762774), (7, 56973410), (10, 39881387), (13, 30677990), (14, 28486705), (26, 15338995), (35, 11394682), (53, 7524790), (65, 6135598), (70, 5697341), (91, 4382570), (106, 3762395), (130, 3067799), (182, 2191285), (265, 1504958), (371, 1074970), (455, 876514), (530, 752479), (689, 578830), (742, 537485), (910, 438257), (1378, 289415), (1855, 214994), (3445, 115766), (3710, 107497), (4823, 82690), (6890, 57883), (8269, 48230), (9646, 41345), (16538, 24115)]