261317420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2143}}^1$

素因数の和:2239

約数の個数: 96

約数和(自身を含む): 685805568

約数和(自身を除く): 424488148

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 67, 70, 91, 130, 134, 140, 182, 260, 268, 335, 364, 455, 469, 670, 871, 910, 938, 1340, 1742, 1820, 1876, 2143, 2345, 3484, 4286, 4355, 4690, 6097, 8572, 8710, 9380, 10715, 12194, 15001, 17420, 21430, 24388, 27859, 30002, 30485, 42860, 55718, 60004, 60970, 75005, 111436, 121940, 139295, 143581, 150010, 195013, 278590, 287162, 300020, 390026, 557180, 574324, 717905, 780052, 975065, 1005067, 1435810, 1866553, 1950130, 2010134, 2871620, 3733106, 3900260, 4020268, 5025335, 7466212, 9332765, 10050670, 13065871, 18665530, 20101340, 26131742, 37331060, 52263484, 65329355, 130658710, 261317420]

約数ペア:

[(1, 261317420), (2, 130658710), (4, 65329355), (5, 52263484), (7, 37331060), (10, 26131742), (13, 20101340), (14, 18665530), (20, 13065871), (26, 10050670), (28, 9332765), (35, 7466212), (52, 5025335), (65, 4020268), (67, 3900260), (70, 3733106), (91, 2871620), (130, 2010134), (134, 1950130), (140, 1866553), (182, 1435810), (260, 1005067), (268, 975065), (335, 780052), (364, 717905), (455, 574324), (469, 557180), (670, 390026), (871, 300020), (910, 287162), (938, 278590), (1340, 195013), (1742, 150010), (1820, 143581), (1876, 139295), (2143, 121940), (2345, 111436), (3484, 75005), (4286, 60970), (4355, 60004), (4690, 55718), (6097, 42860), (8572, 30485), (8710, 30002), (9380, 27859), (10715, 24388), (12194, 21430), (15001, 17420)]