87757780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{6761}}^1$

素因数の和:6840

約数の個数: 48

約数和(自身を含む): 204482880

約数和(自身を除く): 116725100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 110, 118, 220, 236, 295, 590, 649, 1180, 1298, 2596, 3245, 6490, 6761, 12980, 13522, 27044, 33805, 67610, 74371, 135220, 148742, 297484, 371855, 398899, 743710, 797798, 1487420, 1595596, 1994495, 3988990, 4387889, 7977980, 8775778, 17551556, 21939445, 43878890, 87757780]

約数ペア:

[(1, 87757780), (2, 43878890), (4, 21939445), (5, 17551556), (10, 8775778), (11, 7977980), (20, 4387889), (22, 3988990), (44, 1994495), (55, 1595596), (59, 1487420), (110, 797798), (118, 743710), (220, 398899), (236, 371855), (295, 297484), (590, 148742), (649, 135220), (1180, 74371), (1298, 67610), (2596, 33805), (3245, 27044), (6490, 13522), (6761, 12980)]