56128520

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{4091}}^1$

素因数の和:4123

約数の個数: 64

約数和(自身を含む): 147312000

約数和(自身を除く): 91183480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2744, 3430, 4091, 6860, 8182, 13720, 16364, 20455, 28637, 32728, 40910, 57274, 81820, 114548, 143185, 163640, 200459, 229096, 286370, 400918, 572740, 801836, 1002295, 1145480, 1403213, 1603672, 2004590, 2806426, 4009180, 5612852, 7016065, 8018360, 11225704, 14032130, 28064260, 56128520]

約数ペア:

[(1, 56128520), (2, 28064260), (4, 14032130), (5, 11225704), (7, 8018360), (8, 7016065), (10, 5612852), (14, 4009180), (20, 2806426), (28, 2004590), (35, 1603672), (40, 1403213), (49, 1145480), (56, 1002295), (70, 801836), (98, 572740), (140, 400918), (196, 286370), (245, 229096), (280, 200459), (343, 163640), (392, 143185), (490, 114548), (686, 81820), (980, 57274), (1372, 40910), (1715, 32728), (1960, 28637), (2744, 20455), (3430, 16364), (4091, 13720), (6860, 8182)]