16388645

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{199}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 24460800

約数和(自身を除く): 8072155

約数列:

[1, 5, 7, 13, 35, 65, 91, 181, 199, 455, 905, 995, 1267, 1393, 2353, 2587, 6335, 6965, 11765, 12935, 16471, 18109, 36019, 82355, 90545, 180095, 252133, 468247, 1260665, 2341235, 3277729, 16388645]

約数ペア:

[(1, 16388645), (5, 3277729), (7, 2341235), (13, 1260665), (35, 468247), (65, 252133), (91, 180095), (181, 90545), (199, 82355), (455, 36019), (905, 18109), (995, 16471), (1267, 12935), (1393, 11765), (2353, 6965), (2587, 6335)]