321019720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{577}}^1\times {\mathrm{1987}}^1$

素因数の和:2582

約数の個数: 64

約数和(自身を含む): 827326080

約数和(自身を除く): 506306360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 577, 1154, 1987, 2308, 2885, 3974, 4039, 4616, 5770, 7948, 8078, 9935, 11540, 13909, 15896, 16156, 19870, 20195, 23080, 27818, 32312, 39740, 40390, 55636, 69545, 79480, 80780, 111272, 139090, 161560, 278180, 556360, 1146499, 2292998, 4585996, 5732495, 8025493, 9171992, 11464990, 16050986, 22929980, 32101972, 40127465, 45859960, 64203944, 80254930, 160509860, 321019720]

約数ペア:

[(1, 321019720), (2, 160509860), (4, 80254930), (5, 64203944), (7, 45859960), (8, 40127465), (10, 32101972), (14, 22929980), (20, 16050986), (28, 11464990), (35, 9171992), (40, 8025493), (56, 5732495), (70, 4585996), (140, 2292998), (280, 1146499), (577, 556360), (1154, 278180), (1987, 161560), (2308, 139090), (2885, 111272), (3974, 80780), (4039, 79480), (4616, 69545), (5770, 55636), (7948, 40390), (8078, 39740), (9935, 32312), (11540, 27818), (13909, 23080), (15896, 20195), (16156, 19870)]