12557765

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 17677440

約数和(自身を除く): 5119675

約数列:

[1, 5, 11, 19, 55, 61, 95, 197, 209, 305, 671, 985, 1045, 1159, 2167, 3355, 3743, 5795, 10835, 12017, 12749, 18715, 41173, 60085, 63745, 132187, 205865, 228323, 660935, 1141615, 2511553, 12557765]

約数ペア:

[(1, 12557765), (5, 2511553), (11, 1141615), (19, 660935), (55, 228323), (61, 205865), (95, 132187), (197, 63745), (209, 60085), (305, 41173), (671, 18715), (985, 12749), (1045, 12017), (1159, 10835), (2167, 5795), (3355, 3743)]