1638340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{677}}^1$

素因数の和:708

約数の個数: 36

約数和(自身を含む): 3787308

約数和(自身を除く): 2148968

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 677, 1210, 1354, 2420, 2708, 3385, 6770, 7447, 13540, 14894, 29788, 37235, 74470, 81917, 148940, 163834, 327668, 409585, 819170, 1638340]

約数ペア:

[(1, 1638340), (2, 819170), (4, 409585), (5, 327668), (10, 163834), (11, 148940), (20, 81917), (22, 74470), (44, 37235), (55, 29788), (110, 14894), (121, 13540), (220, 7447), (242, 6770), (484, 3385), (605, 2708), (677, 2420), (1210, 1354)]