154327780

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{277}}^1\times {\mathrm{313}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 329963760

約数和(自身を除く): 175635980

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 277, 313, 356, 445, 554, 626, 890, 1108, 1252, 1385, 1565, 1780, 2770, 3130, 5540, 6260, 24653, 27857, 49306, 55714, 86701, 98612, 111428, 123265, 139285, 173402, 246530, 278570, 346804, 433505, 493060, 557140, 867010, 1734020, 7716389, 15432778, 30865556, 38581945, 77163890, 154327780]

約数ペア:

[(1, 154327780), (2, 77163890), (4, 38581945), (5, 30865556), (10, 15432778), (20, 7716389), (89, 1734020), (178, 867010), (277, 557140), (313, 493060), (356, 433505), (445, 346804), (554, 278570), (626, 246530), (890, 173402), (1108, 139285), (1252, 123265), (1385, 111428), (1565, 98612), (1780, 86701), (2770, 55714), (3130, 49306), (5540, 27857), (6260, 24653)]