17782720

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{911}}^1$

素因数の和:989

約数の個数: 56

約数和(自身を含む): 43086528

約数和(自身を除く): 25303808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 160, 244, 305, 320, 488, 610, 911, 976, 1220, 1822, 1952, 2440, 3644, 3904, 4555, 4880, 7288, 9110, 9760, 14576, 18220, 19520, 29152, 36440, 55571, 58304, 72880, 111142, 145760, 222284, 277855, 291520, 444568, 555710, 889136, 1111420, 1778272, 2222840, 3556544, 4445680, 8891360, 17782720]

約数ペア:

[(1, 17782720), (2, 8891360), (4, 4445680), (5, 3556544), (8, 2222840), (10, 1778272), (16, 1111420), (20, 889136), (32, 555710), (40, 444568), (61, 291520), (64, 277855), (80, 222284), (122, 145760), (160, 111142), (244, 72880), (305, 58304), (320, 55571), (488, 36440), (610, 29152), (911, 19520), (976, 18220), (1220, 14576), (1822, 9760), (1952, 9110), (2440, 7288), (3644, 4880), (3904, 4555)]