30403960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{18539}}^1$

素因数の和:18591

約数の個数: 32

約数和(自身を含む): 70081200

約数和(自身を除く): 39677240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 18539, 37078, 74156, 92695, 148312, 185390, 370780, 741560, 760099, 1520198, 3040396, 3800495, 6080792, 7600990, 15201980, 30403960]

約数ペア:

[(1, 30403960), (2, 15201980), (4, 7600990), (5, 6080792), (8, 3800495), (10, 3040396), (20, 1520198), (40, 760099), (41, 741560), (82, 370780), (164, 185390), (205, 148312), (328, 92695), (410, 74156), (820, 37078), (1640, 18539)]