251258840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{821}}^1\times {\mathrm{1093}}^1$

素因数の和:1932

約数の個数: 64

約数和(自身を含む): 647472960

約数和(自身を除く): 396214120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 821, 1093, 1642, 2186, 3284, 4105, 4372, 5465, 5747, 6568, 7651, 8210, 8744, 10930, 11494, 15302, 16420, 21860, 22988, 28735, 30604, 32840, 38255, 43720, 45976, 57470, 61208, 76510, 114940, 153020, 229880, 306040, 897353, 1794706, 3589412, 4486765, 6281471, 7178824, 8973530, 12562942, 17947060, 25125884, 31407355, 35894120, 50251768, 62814710, 125629420, 251258840]

約数ペア:

[(1, 251258840), (2, 125629420), (4, 62814710), (5, 50251768), (7, 35894120), (8, 31407355), (10, 25125884), (14, 17947060), (20, 12562942), (28, 8973530), (35, 7178824), (40, 6281471), (56, 4486765), (70, 3589412), (140, 1794706), (280, 897353), (821, 306040), (1093, 229880), (1642, 153020), (2186, 114940), (3284, 76510), (4105, 61208), (4372, 57470), (5465, 45976), (5747, 43720), (6568, 38255), (7651, 32840), (8210, 30604), (8744, 28735), (10930, 22988), (11494, 21860), (15302, 16420)]