20171761390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1\times {\mathrm{10427}}^1$

素因数の和:10897

約数の個数: 64

約数和(自身を含む): 40634161920

約数和(自身を除く): 20462400530

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 215, 409, 430, 473, 818, 946, 2045, 2365, 4090, 4499, 4730, 8998, 10427, 17587, 20854, 22495, 35174, 44990, 52135, 87935, 104270, 114697, 175870, 193457, 229394, 386914, 448361, 573485, 896722, 967285, 1146970, 1934570, 2241805, 4264643, 4483610, 4931971, 8529286, 9863942, 21323215, 24659855, 42646430, 46911073, 49319710, 93822146, 183379649, 234555365, 366759298, 469110730, 916898245, 1833796490, 2017176139, 4034352278, 10085880695, 20171761390]

約数ペア:

[(1, 20171761390), (2, 10085880695), (5, 4034352278), (10, 2017176139), (11, 1833796490), (22, 916898245), (43, 469110730), (55, 366759298), (86, 234555365), (110, 183379649), (215, 93822146), (409, 49319710), (430, 46911073), (473, 42646430), (818, 24659855), (946, 21323215), (2045, 9863942), (2365, 8529286), (4090, 4931971), (4499, 4483610), (4730, 4264643), (8998, 2241805), (10427, 1934570), (17587, 1146970), (20854, 967285), (22495, 896722), (35174, 573485), (44990, 448361), (52135, 386914), (87935, 229394), (104270, 193457), (114697, 175870)]