30131440

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2399}}^1$

素因数の和:2569

約数の個数: 40

約数和(自身を含む): 70531200

約数和(自身を除く): 40399760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2399, 2512, 3140, 4798, 6280, 9596, 11995, 12560, 19192, 23990, 38384, 47980, 95960, 191920, 376643, 753286, 1506572, 1883215, 3013144, 3766430, 6026288, 7532860, 15065720, 30131440]

約数ペア:

[(1, 30131440), (2, 15065720), (4, 7532860), (5, 6026288), (8, 3766430), (10, 3013144), (16, 1883215), (20, 1506572), (40, 753286), (80, 376643), (157, 191920), (314, 95960), (628, 47980), (785, 38384), (1256, 23990), (1570, 19192), (2399, 12560), (2512, 11995), (3140, 9596), (4798, 6280)]