87984380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{439}}^1\times {\mathrm{911}}^1$

素因数の和:1370

約数の個数: 48

約数和(自身を含む): 202245120

約数和(自身を除く): 114260740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 439, 878, 911, 1756, 1822, 2195, 3644, 4390, 4555, 4829, 8780, 9110, 9658, 10021, 18220, 19316, 20042, 24145, 40084, 48290, 50105, 96580, 100210, 200420, 399929, 799858, 1599716, 1999645, 3999290, 4399219, 7998580, 8798438, 17596876, 21996095, 43992190, 87984380]

約数ペア:

[(1, 87984380), (2, 43992190), (4, 21996095), (5, 17596876), (10, 8798438), (11, 7998580), (20, 4399219), (22, 3999290), (44, 1999645), (55, 1599716), (110, 799858), (220, 399929), (439, 200420), (878, 100210), (911, 96580), (1756, 50105), (1822, 48290), (2195, 40084), (3644, 24145), (4390, 20042), (4555, 19316), (4829, 18220), (8780, 10021), (9110, 9658)]