31853185

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 48895056

約数和(自身を除く): 17041871

約数列:

[1, 5, 7, 13, 35, 49, 65, 73, 91, 137, 245, 365, 455, 511, 637, 685, 949, 959, 1781, 2555, 3185, 3577, 4745, 4795, 6643, 6713, 8905, 10001, 12467, 17885, 33215, 33565, 46501, 50005, 62335, 70007, 87269, 130013, 232505, 350035, 436345, 490049, 650065, 910091, 2450245, 4550455, 6370637, 31853185]

約数ペア:

[(1, 31853185), (5, 6370637), (7, 4550455), (13, 2450245), (35, 910091), (49, 650065), (65, 490049), (73, 436345), (91, 350035), (137, 232505), (245, 130013), (365, 87269), (455, 70007), (511, 62335), (637, 50005), (685, 46501), (949, 33565), (959, 33215), (1781, 17885), (2555, 12467), (3185, 10001), (3577, 8905), (4745, 6713), (4795, 6643)]