393308840

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{557}}^1$

素因数の和:834

約数の個数: 64

約数和(自身を含む): 899942400

約数和(自身を除く): 506633560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 139, 254, 278, 508, 556, 557, 635, 695, 1016, 1112, 1114, 1270, 1390, 2228, 2540, 2780, 2785, 4456, 5080, 5560, 5570, 11140, 17653, 22280, 35306, 70612, 70739, 77423, 88265, 141224, 141478, 154846, 176530, 282956, 309692, 353060, 353695, 387115, 565912, 619384, 706120, 707390, 774230, 1414780, 1548460, 2829560, 3096920, 9832721, 19665442, 39330884, 49163605, 78661768, 98327210, 196654420, 393308840]

約数ペア:

[(1, 393308840), (2, 196654420), (4, 98327210), (5, 78661768), (8, 49163605), (10, 39330884), (20, 19665442), (40, 9832721), (127, 3096920), (139, 2829560), (254, 1548460), (278, 1414780), (508, 774230), (556, 707390), (557, 706120), (635, 619384), (695, 565912), (1016, 387115), (1112, 353695), (1114, 353060), (1270, 309692), (1390, 282956), (2228, 176530), (2540, 154846), (2780, 141478), (2785, 141224), (4456, 88265), (5080, 77423), (5560, 70739), (5570, 70612), (11140, 35306), (17653, 22280)]