85744720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{2969}}^1$

素因数の和:3020

約数の個数: 60

約数和(自身を含む): 210472020

約数和(自身を除く): 124727300

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 722, 760, 1444, 1520, 1805, 2888, 2969, 3610, 5776, 5938, 7220, 11876, 14440, 14845, 23752, 28880, 29690, 47504, 56411, 59380, 112822, 118760, 225644, 237520, 282055, 451288, 564110, 902576, 1071809, 1128220, 2143618, 2256440, 4287236, 4512880, 5359045, 8574472, 10718090, 17148944, 21436180, 42872360, 85744720]

約数ペア:

[(1, 85744720), (2, 42872360), (4, 21436180), (5, 17148944), (8, 10718090), (10, 8574472), (16, 5359045), (19, 4512880), (20, 4287236), (38, 2256440), (40, 2143618), (76, 1128220), (80, 1071809), (95, 902576), (152, 564110), (190, 451288), (304, 282055), (361, 237520), (380, 225644), (722, 118760), (760, 112822), (1444, 59380), (1520, 56411), (1805, 47504), (2888, 29690), (2969, 28880), (3610, 23752), (5776, 14845), (5938, 14440), (7220, 11876)]