64205121680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{479}}^1\times {\mathrm{239357}}^1$

素因数の和:239856

約数の個数: 80

約数和(自身を含む): 170959057920

約数和(自身を除く): 106753936240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 479, 560, 958, 1916, 2395, 3353, 3832, 4790, 6706, 7664, 9580, 13412, 16765, 19160, 26824, 33530, 38320, 53648, 67060, 134120, 239357, 268240, 478714, 957428, 1196785, 1675499, 1914856, 2393570, 3350998, 3829712, 4787140, 6701996, 8377495, 9574280, 13403992, 16754990, 19148560, 26807984, 33509980, 67019960, 114652003, 134039920, 229304006, 458608012, 573260015, 802564021, 917216024, 1146520030, 1605128042, 1834432048, 2293040060, 3210256084, 4012820105, 4586080120, 6420512168, 8025640210, 9172160240, 12841024336, 16051280420, 32102560840, 64205121680]

約数ペア:

[(1, 64205121680), (2, 32102560840), (4, 16051280420), (5, 12841024336), (7, 9172160240), (8, 8025640210), (10, 6420512168), (14, 4586080120), (16, 4012820105), (20, 3210256084), (28, 2293040060), (35, 1834432048), (40, 1605128042), (56, 1146520030), (70, 917216024), (80, 802564021), (112, 573260015), (140, 458608012), (280, 229304006), (479, 134039920), (560, 114652003), (958, 67019960), (1916, 33509980), (2395, 26807984), (3353, 19148560), (3832, 16754990), (4790, 13403992), (6706, 9574280), (7664, 8377495), (9580, 6701996), (13412, 4787140), (16765, 3829712), (19160, 3350998), (26824, 2393570), (33530, 1914856), (38320, 1675499), (53648, 1196785), (67060, 957428), (134120, 478714), (239357, 268240)]