1900992020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{563}}^1\times {\mathrm{9931}}^1$

素因数の和:10520

約数の個数: 48

約数和(自身を含む): 4234845888

約数和(自身を除く): 2333853868

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 563, 1126, 2252, 2815, 5630, 9571, 9931, 11260, 19142, 19862, 38284, 39724, 47855, 49655, 95710, 99310, 168827, 191420, 198620, 337654, 675308, 844135, 1688270, 3376540, 5591153, 11182306, 22364612, 27955765, 55911530, 95049601, 111823060, 190099202, 380198404, 475248005, 950496010, 1900992020]

約数ペア:

[(1, 1900992020), (2, 950496010), (4, 475248005), (5, 380198404), (10, 190099202), (17, 111823060), (20, 95049601), (34, 55911530), (68, 27955765), (85, 22364612), (170, 11182306), (340, 5591153), (563, 3376540), (1126, 1688270), (2252, 844135), (2815, 675308), (5630, 337654), (9571, 198620), (9931, 191420), (11260, 168827), (19142, 99310), (19862, 95710), (38284, 49655), (39724, 47855)]