40407718

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{521}}^1$

素因数の和:712

約数の個数: 32

約数和(自身を含む): 69279840

約数和(自身を除く): 28872122

約数列:

[1, 2, 13, 19, 26, 38, 157, 247, 314, 494, 521, 1042, 2041, 2983, 4082, 5966, 6773, 9899, 13546, 19798, 38779, 77558, 81797, 128687, 163594, 257374, 1063361, 1554143, 2126722, 3108286, 20203859, 40407718]

約数ペア:

[(1, 40407718), (2, 20203859), (13, 3108286), (19, 2126722), (26, 1554143), (38, 1063361), (157, 257374), (247, 163594), (314, 128687), (494, 81797), (521, 77558), (1042, 38779), (2041, 19798), (2983, 13546), (4082, 9899), (5966, 6773)]