78838520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{431}}^1$

素因数の和:728

約数の個数: 64

約数和(自身を含む): 188956800

約数和(自身を除く): 110118280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 269, 340, 431, 538, 680, 862, 1076, 1345, 1724, 2152, 2155, 2690, 3448, 4310, 4573, 5380, 7327, 8620, 9146, 10760, 14654, 17240, 18292, 22865, 29308, 36584, 36635, 45730, 58616, 73270, 91460, 115939, 146540, 182920, 231878, 293080, 463756, 579695, 927512, 1159390, 1970963, 2318780, 3941926, 4637560, 7883852, 9854815, 15767704, 19709630, 39419260, 78838520]

約数ペア:

[(1, 78838520), (2, 39419260), (4, 19709630), (5, 15767704), (8, 9854815), (10, 7883852), (17, 4637560), (20, 3941926), (34, 2318780), (40, 1970963), (68, 1159390), (85, 927512), (136, 579695), (170, 463756), (269, 293080), (340, 231878), (431, 182920), (538, 146540), (680, 115939), (862, 91460), (1076, 73270), (1345, 58616), (1724, 45730), (2152, 36635), (2155, 36584), (2690, 29308), (3448, 22865), (4310, 18292), (4573, 17240), (5380, 14654), (7327, 10760), (8620, 9146)]