81912780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{4253}}^1$

素因数の和:4375

約数の個数: 72

約数和(自身を含む): 250849872

約数和(自身を除く): 168937092

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 107, 180, 214, 321, 428, 535, 642, 963, 1070, 1284, 1605, 1926, 2140, 3210, 3852, 4253, 4815, 6420, 8506, 9630, 12759, 17012, 19260, 21265, 25518, 38277, 42530, 51036, 63795, 76554, 85060, 127590, 153108, 191385, 255180, 382770, 455071, 765540, 910142, 1365213, 1820284, 2275355, 2730426, 4095639, 4550710, 5460852, 6826065, 8191278, 9101420, 13652130, 16382556, 20478195, 27304260, 40956390, 81912780]

約数ペア:

[(1, 81912780), (2, 40956390), (3, 27304260), (4, 20478195), (5, 16382556), (6, 13652130), (9, 9101420), (10, 8191278), (12, 6826065), (15, 5460852), (18, 4550710), (20, 4095639), (30, 2730426), (36, 2275355), (45, 1820284), (60, 1365213), (90, 910142), (107, 765540), (180, 455071), (214, 382770), (321, 255180), (428, 191385), (535, 153108), (642, 127590), (963, 85060), (1070, 76554), (1284, 63795), (1605, 51036), (1926, 42530), (2140, 38277), (3210, 25518), (3852, 21265), (4253, 19260), (4815, 17012), (6420, 12759), (8506, 9630)]