217740488

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{439}}^1\times {\mathrm{521}}^1$

素因数の和:990

約数の個数: 64

約数和(自身を含む): 496108800

約数和(自身を除く): 278368312

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 238, 439, 476, 521, 878, 952, 1042, 1756, 2084, 3073, 3512, 3647, 4168, 6146, 7294, 7463, 8857, 12292, 14588, 14926, 17714, 24584, 29176, 29852, 35428, 52241, 59704, 61999, 70856, 104482, 123998, 208964, 228719, 247996, 417928, 457438, 495992, 914876, 1601033, 1829752, 3202066, 3888223, 6404132, 7776446, 12808264, 15552892, 27217561, 31105784, 54435122, 108870244, 217740488]

約数ペア:

[(1, 217740488), (2, 108870244), (4, 54435122), (7, 31105784), (8, 27217561), (14, 15552892), (17, 12808264), (28, 7776446), (34, 6404132), (56, 3888223), (68, 3202066), (119, 1829752), (136, 1601033), (238, 914876), (439, 495992), (476, 457438), (521, 417928), (878, 247996), (952, 228719), (1042, 208964), (1756, 123998), (2084, 104482), (3073, 70856), (3512, 61999), (3647, 59704), (4168, 52241), (6146, 35428), (7294, 29852), (7463, 29176), (8857, 24584), (12292, 17714), (14588, 14926)]