258707900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{479}}^1\times {\mathrm{491}}^1$

素因数の和:995

約数の個数: 72

約数和(自身を含む): 614960640

約数和(自身を除く): 356252740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 479, 491, 550, 958, 982, 1100, 1916, 1964, 2395, 2455, 4790, 4910, 5269, 5401, 9580, 9820, 10538, 10802, 11975, 12275, 21076, 21604, 23950, 24550, 26345, 27005, 47900, 49100, 52690, 54010, 105380, 108020, 131725, 135025, 235189, 263450, 270050, 470378, 526900, 540100, 940756, 1175945, 2351890, 2587079, 4703780, 5174158, 5879725, 10348316, 11759450, 12935395, 23518900, 25870790, 51741580, 64676975, 129353950, 258707900]

約数ペア:

[(1, 258707900), (2, 129353950), (4, 64676975), (5, 51741580), (10, 25870790), (11, 23518900), (20, 12935395), (22, 11759450), (25, 10348316), (44, 5879725), (50, 5174158), (55, 4703780), (100, 2587079), (110, 2351890), (220, 1175945), (275, 940756), (479, 540100), (491, 526900), (550, 470378), (958, 270050), (982, 263450), (1100, 235189), (1916, 135025), (1964, 131725), (2395, 108020), (2455, 105380), (4790, 54010), (4910, 52690), (5269, 49100), (5401, 47900), (9580, 27005), (9820, 26345), (10538, 24550), (10802, 23950), (11975, 21604), (12275, 21076)]