72540440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{577}}^1$

素因数の和:1044

約数の個数: 64

約数和(自身を含む): 187272000

約数和(自身を除く): 114731560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 449, 577, 898, 1154, 1796, 2245, 2308, 2885, 3143, 3592, 4039, 4490, 4616, 5770, 6286, 8078, 8980, 11540, 12572, 15715, 16156, 17960, 20195, 23080, 25144, 31430, 32312, 40390, 62860, 80780, 125720, 161560, 259073, 518146, 1036292, 1295365, 1813511, 2072584, 2590730, 3627022, 5181460, 7254044, 9067555, 10362920, 14508088, 18135110, 36270220, 72540440]

約数ペア:

[(1, 72540440), (2, 36270220), (4, 18135110), (5, 14508088), (7, 10362920), (8, 9067555), (10, 7254044), (14, 5181460), (20, 3627022), (28, 2590730), (35, 2072584), (40, 1813511), (56, 1295365), (70, 1036292), (140, 518146), (280, 259073), (449, 161560), (577, 125720), (898, 80780), (1154, 62860), (1796, 40390), (2245, 32312), (2308, 31430), (2885, 25144), (3143, 23080), (3592, 20195), (4039, 17960), (4490, 16156), (4616, 15715), (5770, 12572), (6286, 11540), (8078, 8980)]