30987828

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:321

約数の個数: 72

約数和(自身を含む): 81081000

約数和(自身を除く): 50093172

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 106, 109, 149, 159, 212, 218, 298, 318, 327, 436, 447, 477, 596, 636, 654, 894, 954, 981, 1308, 1341, 1788, 1908, 1962, 2682, 3924, 5364, 5777, 7897, 11554, 15794, 16241, 17331, 23108, 23691, 31588, 32482, 34662, 47382, 48723, 51993, 64964, 69324, 71073, 94764, 97446, 103986, 142146, 146169, 194892, 207972, 284292, 292338, 584676, 860773, 1721546, 2582319, 3443092, 5164638, 7746957, 10329276, 15493914, 30987828]

約数ペア:

[(1, 30987828), (2, 15493914), (3, 10329276), (4, 7746957), (6, 5164638), (9, 3443092), (12, 2582319), (18, 1721546), (36, 860773), (53, 584676), (106, 292338), (109, 284292), (149, 207972), (159, 194892), (212, 146169), (218, 142146), (298, 103986), (318, 97446), (327, 94764), (436, 71073), (447, 69324), (477, 64964), (596, 51993), (636, 48723), (654, 47382), (894, 34662), (954, 32482), (981, 31588), (1308, 23691), (1341, 23108), (1788, 17331), (1908, 16241), (1962, 15794), (2682, 11554), (3924, 7897), (5364, 5777)]