28990360

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{2113}}^1$

素因数の和:2145

約数の個数: 64

約数和(自身を含む): 76104000

約数和(自身を除く): 47113640

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, 2113, 2744, 3430, 4226, 6860, 8452, 10565, 13720, 14791, 16904, 21130, 29582, 42260, 59164, 73955, 84520, 103537, 118328, 147910, 207074, 295820, 414148, 517685, 591640, 724759, 828296, 1035370, 1449518, 2070740, 2899036, 3623795, 4141480, 5798072, 7247590, 14495180, 28990360]

約数ペア:

[(1, 28990360), (2, 14495180), (4, 7247590), (5, 5798072), (7, 4141480), (8, 3623795), (10, 2899036), (14, 2070740), (20, 1449518), (28, 1035370), (35, 828296), (40, 724759), (49, 591640), (56, 517685), (70, 414148), (98, 295820), (140, 207074), (196, 147910), (245, 118328), (280, 103537), (343, 84520), (392, 73955), (490, 59164), (686, 42260), (980, 29582), (1372, 21130), (1715, 16904), (1960, 14791), (2113, 13720), (2744, 10565), (3430, 8452), (4226, 6860)]