388771880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{1427}}^1$

素因数の和:1591

約数の個数: 96

約数和(自身を含む): 1025589600

約数和(自身を除く): 636817720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 139, 140, 196, 245, 278, 280, 392, 490, 556, 695, 973, 980, 1112, 1390, 1427, 1946, 1960, 2780, 2854, 3892, 4865, 5560, 5708, 6811, 7135, 7784, 9730, 9989, 11416, 13622, 14270, 19460, 19978, 27244, 28540, 34055, 38920, 39956, 49945, 54488, 57080, 68110, 69923, 79912, 99890, 136220, 139846, 198353, 199780, 272440, 279692, 349615, 396706, 399560, 559384, 699230, 793412, 991765, 1388471, 1398460, 1586824, 1983530, 2776942, 2796920, 3967060, 5553884, 6942355, 7934120, 9719297, 11107768, 13884710, 19438594, 27769420, 38877188, 48596485, 55538840, 77754376, 97192970, 194385940, 388771880]

約数ペア:

[(1, 388771880), (2, 194385940), (4, 97192970), (5, 77754376), (7, 55538840), (8, 48596485), (10, 38877188), (14, 27769420), (20, 19438594), (28, 13884710), (35, 11107768), (40, 9719297), (49, 7934120), (56, 6942355), (70, 5553884), (98, 3967060), (139, 2796920), (140, 2776942), (196, 1983530), (245, 1586824), (278, 1398460), (280, 1388471), (392, 991765), (490, 793412), (556, 699230), (695, 559384), (973, 399560), (980, 396706), (1112, 349615), (1390, 279692), (1427, 272440), (1946, 199780), (1960, 198353), (2780, 139846), (2854, 136220), (3892, 99890), (4865, 79912), (5560, 69923), (5708, 68110), (6811, 57080), (7135, 54488), (7784, 49945), (9730, 39956), (9989, 38920), (11416, 34055), (13622, 28540), (14270, 27244), (19460, 19978)]