81725820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{11257}}^1$

素因数の和:11291

約数の個数: 72

約数和(自身を含む): 251548752

約数和(自身を除く): 169822932

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 121, 132, 165, 220, 242, 330, 363, 484, 605, 660, 726, 1210, 1452, 1815, 2420, 3630, 7260, 11257, 22514, 33771, 45028, 56285, 67542, 112570, 123827, 135084, 168855, 225140, 247654, 337710, 371481, 495308, 619135, 675420, 742962, 1238270, 1362097, 1485924, 1857405, 2476540, 2724194, 3714810, 4086291, 5448388, 6810485, 7429620, 8172582, 13620970, 16345164, 20431455, 27241940, 40862910, 81725820]

約数ペア:

[(1, 81725820), (2, 40862910), (3, 27241940), (4, 20431455), (5, 16345164), (6, 13620970), (10, 8172582), (11, 7429620), (12, 6810485), (15, 5448388), (20, 4086291), (22, 3714810), (30, 2724194), (33, 2476540), (44, 1857405), (55, 1485924), (60, 1362097), (66, 1238270), (110, 742962), (121, 675420), (132, 619135), (165, 495308), (220, 371481), (242, 337710), (330, 247654), (363, 225140), (484, 168855), (605, 135084), (660, 123827), (726, 112570), (1210, 67542), (1452, 56285), (1815, 45028), (2420, 33771), (3630, 22514), (7260, 11257)]