80888918

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{401}}^1$

素因数の和:640

約数の個数: 32

約数和(自身を含む): 135978912

約数和(自身を除く): 55089994

約数列:

[1, 2, 11, 22, 53, 106, 173, 346, 401, 583, 802, 1166, 1903, 3806, 4411, 8822, 9169, 18338, 21253, 42506, 69373, 100859, 138746, 201718, 233783, 467566, 763103, 1526206, 3676769, 7353538, 40444459, 80888918]

約数ペア:

[(1, 80888918), (2, 40444459), (11, 7353538), (22, 3676769), (53, 1526206), (106, 763103), (173, 467566), (346, 233783), (401, 201718), (583, 138746), (802, 100859), (1166, 69373), (1903, 42506), (3806, 21253), (4411, 18338), (8822, 9169)]