25503940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16561}}^1$

素因数の和:16588

約数の個数: 48

約数和(自身を含む): 66777984

約数和(自身を除く): 41274044

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 16561, 33122, 66244, 82805, 115927, 165610, 182171, 231854, 331220, 364342, 463708, 579635, 728684, 910855, 1159270, 1275197, 1821710, 2318540, 2550394, 3643420, 5100788, 6375985, 12751970, 25503940]

約数ペア:

[(1, 25503940), (2, 12751970), (4, 6375985), (5, 5100788), (7, 3643420), (10, 2550394), (11, 2318540), (14, 1821710), (20, 1275197), (22, 1159270), (28, 910855), (35, 728684), (44, 579635), (55, 463708), (70, 364342), (77, 331220), (110, 231854), (140, 182171), (154, 165610), (220, 115927), (308, 82805), (385, 66244), (770, 33122), (1540, 16561)]