1981015072

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{997}}^1\times {\mathrm{2003}}^1$

素因数の和:3041

約数の個数: 48

約数和(自身を含む): 4031983872

約数和(自身を除く): 2050968800

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 992, 997, 1994, 2003, 3988, 4006, 7976, 8012, 15952, 16024, 30907, 31904, 32048, 61814, 62093, 64096, 123628, 124186, 247256, 248372, 494512, 496744, 989024, 993488, 1986976, 1996991, 3993982, 7987964, 15975928, 31951856, 61906721, 63903712, 123813442, 247626884, 495253768, 990507536, 1981015072]

約数ペア:

[(1, 1981015072), (2, 990507536), (4, 495253768), (8, 247626884), (16, 123813442), (31, 63903712), (32, 61906721), (62, 31951856), (124, 15975928), (248, 7987964), (496, 3993982), (992, 1996991), (997, 1986976), (1994, 993488), (2003, 989024), (3988, 496744), (4006, 494512), (7976, 248372), (8012, 247256), (15952, 124186), (16024, 123628), (30907, 64096), (31904, 62093), (32048, 61814)]